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Macular Degeneration, Age-Related Macular Degeneration, Age-Related, Laser Photocoagulation for Macular Degeneration, Age-Related, Photocoagulation (Laser) for Macular Degeneration, Age-Related, Photodynamic Therapy for Mad Cow Disease Maggie Morris: Plan Ahead When You Eat Out Maggie: Making Room for Worth-It Foods Maggie's Story: Making Changes for Her Health Maggie's Strategies for Eating Healthy Magnetic Field Therapy Magnetic Resonance Cholangiogram Major Nutrients in Food Making a Change That Matters Making a Plan to Help Someone Get Treatment for an Alcohol Use Problem Making Decisions About Very Premature Infants: Personal Stories Making the Most of Your Appointment Making Wise Health Decisions Making Your Change Happen Malabsorption Syndrome Malabsorption Syndrome Malaria Malaria Vaccines in Development Malaria: Life-Threatening Complications Malaria: Resistance to Medicine Male Breast Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI] Male Breast Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] Male Breast Development Male Condoms Male Genital Problems and Injuries Male Risk for Osteoporosis Malignant High Blood Pressure Malignant Mesothelioma Treatment (PDQ®): Treatment - Health Professional Information [NCI] Malignant Mesothelioma Treatment (PDQ®): Treatment - Patient Information [NCI] Mallet Toe, Phalangeal Head Resection for Mallet Toe: Should I have surgery? Mallet Toes Malocclusion and Orthodontics Manage Stress for Your Heart Managing Job Stress Managing Your Medical Bills Managing Your Toddler's Frustrating Behaviors Manic Depression in Children and Teens Manic episode prevention for your child with bipolar disorder Manic episode prevention with bipolar disorder Manic-Depressive Disorder Manual Therapy and Bodywork Manual Therapy for Neck Pain Marijuana Marine Stings and Scrapes Marine Toxins Martha's Story: A Voice for Recovery Marvin's Story: Coping After the Hurricane Mask spacer and metered-dose inhaler, Helping a child with asthma use a Massage Therapy Massage Therapy During Pregnancy Mastalgia (Breast Pain) Mastectomy (Removal of the Breast) for Breast Cancer Mastectomy for Breast Cancer Mastectomy or Breast-Conserving Surgery to Treat Early -Stage Breast Cancer, Deciding About Mastectomy, Deciding About Breast Reconstruction Mastitis While Breastfeeding Maternal Serum Triple or Quadruple Test, Deciding About Maze Procedure for Atrial Fibrillation Measles (Rubeola) Measuring Your Waist Mechanical Ventilation at End of Life, Deciding About Media and Your Child: Making Choices Medial Collateral Ligament (MCL) Injury Medical Abortion Care Medical Causes of Bed-Wetting Medical Checkups for Adolescents Medical Conditions That Increase the Risk of Osteoporosis Medical Conditions That May Cause Back Pain Medical Decision Making Medical Errors Prevention Medical History and Physical Exam for a Fast Heart Rate Medical History and Physical Exam for a Lumbar Herniated Disc Medical History and Physical Exam for a Slow Heart Rate Medical History and Physical Exam for Atrial Fibrillation Medical History and Physical Exam for Colorectal Cancer Medical History and Physical Exam for Coronary Artery Disease Medical History and Physical Exam for Dementia or Alzheimer's Disease Medical History and Physical Exam for Diverticulitis Medical History and Physical Exam for Giardiasis Medical History and Physical Exam for Heart Failure Medical History and Physical Exam for HIV Infection Medical History and Physical Exam for Irritable Bowel Syndrome Medical History and Physical Exam for Juvenile Idiopathic Arthritis Medical History and Physical Exam for Kidney Stones Medical History and Physical Exam for Low Back Pain Medical History and Physical Exam for Nearsightedness Medical History and Physical Exam for Osteoarthritis Medical History and Physical Exam for Rheumatoid Arthritis Medical History and Physical Exam for Tuberculosis (TB) Medical History and Physical Exam for Urinary Incontinence in Men Medical History and Physical Exam for Urinary Incontinence in Women Medical History and Physical Exam for Urinary Tract Infections Medical History for Alcohol Problems Medical History for Eating Disorders Medical History for Hepatitis C Medical History for Osteoporosis Medical History for Paget's Disease Medical History for PMS Medical History for Pneumonia Medical Marijuana Medical Partnership Medical Power of Attorney Medical Records at Home Medical Specialists Medical Test Preparation for Children and Teens Medicare Hospice Benefit Medicare: What You Need to Know Medication Allergies Medication and Grapefruit Juice Medication Cost Reduction Medication Side Effects and Interactions, Dealing With Medications, Pregnancy During Medications, Prescription Medications, Taking Wisely: Quick Tips Medicinal Mushrooms (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI] Medicinal Mushrooms (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI] Medicine for Tourette's Disorder Medicine side effects for depression, Dealing with Medicines and Other Substances That Can Cause Symptoms of Depression Medicines During Pregnancy Medicines for ADHD (attention deficit hyperactivity disorder) Medicines for bone loss Medicines for Cluster Headaches Medicines for Erection Problems: Reactions With Nitrate Medicines That Can Cause Acute Kidney Injury Medicines That Can Cause Constipation Medicines That Can Cause Pancreatitis Medicines That Cause Hearing Loss Medicines That Interact With Alcohol Medicines to Prevent Abnormal Heart Rhythm in Heart Failure Medicines, Osteoporosis, and Fractures Meditation Meditation for Stress Management Mediterranean Diet Melanoma Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI] Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI] Melanoma, Excision of Melanoma, Lymphadenectomy (Lymph Node Removal) for Melanoma, Radiation Therapy for Melanoma, Surgical Excision of Melatonin Memory Loss Memory Problems: Issues With Driving Memory Problems: Tips for Helping the Person With Daily Tasks Memory Problems: Wandering Menarche Ménière's Disease Ménière's Disease and Sodium Meningitis Meningitis and Group B Streptococci Meningitis and Listeria Monocytogenes Meningitis: Long-Term Problems Meningitis: Medicines for Pressure on the Brain Meningitis: Medicines for Seizures Meningitis: Short-Term Problems Meningococcal ACWY Vaccines - MenACWY and MPSV4: What You Need to Know Meniscectomy for a Meniscus Tear Meniscus Repair Meniscus Surgery: Recovery Time Meniscus Tear Meniscus Tear, Meniscectomy for Meniscus Tear: Rehabilitation Exercises Meniscus Tear: Should I Have a Diagnostic Test (MRI or Arthroscopy)? Meniscus Tear: Should I Have Surgery? Menopause and Perimenopause Menopause and Your Risk for Other Health Concerns Menopause: Managing Hot Flashes Menopause: Should I Use Hormone Therapy (HT)? Menopause: Wild Yam and Progesterone Creams Men's Health Menstrual Cramps Menstrual Cups Menstrual Cycle Menstrual Cycle: Dealing With Cramps Menstrual Pain Relief Menstrual Periods, Missed or Irregular Menstruation: Not Having a Period by Age 15 Mental and Behavioral Health Mental Decline Mental Health Problems and Stigma Mercury in Fish Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Health Professional Information [NCI] Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Patient Information [NCI] Metabolic Panel, Basic Metabolic Panel, Comprehensive Metabolic Surgery (Biliopancreatic Diversion) Metabolic Syndrome Metastatic Breast Cancer Metastatic Melanoma Metastatic Prostate Cancer Metastatic Squamous Neck Cancer With Occult Primary Treatment (PDQ®): Treatment - Health Professional Information [NCI] Metastatic Squamous Neck Cancer with Occult Primary Treatment (PDQ®): Treatment - Patient Information [NCI] Metered-dose inhaler and mask spacer, Helping a child with asthma use a Metered-Dose Inhaler for Breathing Problems Metformin for diabetes Methamphetamine Methicillin-Resistant Staphylococcus Aureus (MRSA) Methylxanthines for Chronic Obstructive Pulmonary Disease (COPD) Microdiscectomy for a Herniated Disc Middle Ear Infection Middle East Respiratory Syndrome (MERS) Migrain Headache Prevention, Should I take Medication? Migraine Headache Triggers Migraine Headache, Beta-Blockers for Migraine Headaches Migraines: Finding and Avoiding Triggers Mild Cognitive Impairment and Dementia Mild, Moderate, and Severe Vertigo Mild, Moderate, or Severe Diarrhea Milestones for 10-Year-Olds Milestones for 2-Year-Olds Milestones for 3-Year-Olds Milestones for 4-Year-Olds Milestones for 5-Year-Olds Milestones for 6-Year-Olds Milestones for 7-Year-Olds Milestones for 8-Year-Olds Milestones for 9-Year-Olds Milestones for a 1-Year-Old Milestones for Ages 11 to 14 Milestones for Ages 15 to 18 Milestones for an 18-Month-Old Child Military Sexual Trauma Milk Allergy Milk Intolerance Milk Oversupply Milk Sugar Tolerance Milk Thistle Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI] Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI] Mind-Body Wellness Mindfulness-Based Stress Reduction Minerals: Their Functions and Sources Miscarriage Miscarriage: Expectant Management for Incomplete Miscarriage Miscarriage: Should I Have Treatment to Complete a Miscarriage? Miscarriage: Vacuum Aspiration Misdiagnosis of Lyme Disease Missed or Irregular Periods Missed Periods and Endurance Training Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI] Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI] Mitochondrial Diseases Mitral Valve Disease: Heart Rhythm Problems Mitral Valve Prolapse Mitral Valve Prolapse, Valve Repair or Replacement for Mitral Valve Regurgitation Mitral Valve Regurgitation and Exercise Mitral Valve Regurgitation, Valve Repair or Replacement for Mitral Valve Regurgitation: Repair or Replace the Valve? Mitral Valve Regurgitation: Severity Mitral Valve Repair Surgery (Commissurotomy) for Mitral Valve Stenosis Mitral Valve Replacement Surgery Mitral Valve Stenosis Mitral Valve Stenosis: Repair or Replacement? MMR Vaccine (Measles, Mumps and Rubella): What You Need to Know MMRV Vaccine (Measles, Mumps, Rubella and Varicella): What You Need to Know Mobility After a Spinal Cord Injury Modify Recipes for a Heart-Healthy Diet Mohs Micrographic Surgery for Nonmelanoma Skin Cancer Moisture Alarms for Bed-Wetting Molar Pregnancy Molluscum Contagiosum Monitoring and Medicines for Heart Failure Monitoring Asthma Treatment Monitoring During Anesthesia Monitoring Your Medicines Monitoring Your Medicines in the Hospital Mono (Infectious Mononucleosis) Mononucleosis (Mono) Mononucleosis Complications Mononucleosis, Liver Tests for Mood-stabilizing medicines Morning after pill (contraception) Morning Sickness, Managing Morton's Neuroma Motion Sickness Motivational Therapy for Bed-Wetting Mouth (Oral) Cancer Mouth and Dental Mouth and Dental Injuries Mouth Breathing and Malocclusion Mouth Guard Mouth Guards for Sports Mouth Piercing Problems Mouth Problems, Noninjury Mouth Sores Mouth Wounds: How to Stop Bleeding Moving From Sitting to Standing MRI: Should I have an MRI for low back pain? MRSA (Methicillin-Resistant Staphylococcus aureus) MS (Multiple Sclerosis) MSA Process: Recovery After Injury Mucous Cyst Ganglions Multidrug-Resistant Tuberculosis (TB) Multifetal Pregnancy Reduction Multifetal pregnancy reduction, Should I consider a Multiple Pregnancy: Genetic Disorders and Birth Defects Multiple Pregnancy: Should I Consider a Multifetal Pregnancy Reduction? Multiple Pregnancy: Twins or More Multiple Sclerosis (MS) Multiple Sclerosis and Geographic Location Multiple Sclerosis and Pregnancy Multiple Sclerosis Progression Multiple Sclerosis, Evoked Potential Test for Multiple Sclerosis, Neurological Examination for Multiple Sclerosis: Alternative Treatments Multiple Sclerosis: Benefits of Exercise Multiple Sclerosis: Bladder Problems Multiple Sclerosis: Intravenous Immunoglobulin (IVIG) Multiple Sclerosis: Medicines for Depression Multiple Sclerosis: Medicines for Fatigue Multiple Sclerosis: Medicines for Muscle Stiffness and Tremors Multiple Sclerosis: Mental and Emotional Problems Multiple Sclerosis: Mercury Dental Fillings Multiple Sclerosis: Modifying Your Home Multiple Sclerosis: MRI Results Multiple Sclerosis: Other Treatments Under Study Multiple Sclerosis: Pain Medicines Multiple Sclerosis: Questions About What to Expect Multiple Sclerosis: Should I Start Taking Medicines for MS? Multiple Sclerosis: Treating Sexual Problems With Medicines Multiple Sclerosis: Urinary Tract Tests Mumps Munchausen Syndrome by Proxy Muscle Cramps Muscle Relaxants Muscle Relaxants for Anesthesia Music Therapy Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Using Graded Exercise to Get More Energy Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Using Healthy Thinking Mycosis Fungoides and the Sézary Syndrome Treatment (PDQ®): Treatment - Health Professional Information [NCI] Mycosis Fungoides and the Sézary Syndrome Treatment (PDQ®): Treatment - Patient Information [NCI] Myelodysplastic Syndromes Treatment (PDQ®): Treatment - Health Professional Information [NCI] Myelodysplastic Syndromes Treatment (PDQ®): Treatment - Patient Information [NCI] Myelodysplastic/ Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Health Professional Information [NCI] Myelodysplastic/ Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Patient Information [NCI] Myocardial Infarction (Heart Attack) Myomectomy Myopia (Nearsightedness) Myopia, Corneal Ring Implants for Myths About Tourette's Disorder Myths and Facts About Depression Myxoma Tumors of the Heart