- B Cell Prolymphocytic Leukemia - 14 Studies
- Back Injuries - 71 Studies
- Bacteremia - 181 Studies
- Bacterial Meningitis - 24 Studies
- Bacteriuria - 31 Studies
- Balanitis - 2 Studies
- BAP1 Tumor Predisposition Syndrome - 1 Studies
- Bardet-Biedl Syndrome - 1 Studies
- Bardet-Biedl Syndrome 1 - 0 Studies
- Bardet-Biedl Syndrome 10 - 0 Studies
- Bardet-Biedl Syndrome 11 - 0 Studies
- Bardet-Biedl Syndrome 12 - 0 Studies
- Bardet-Biedl Syndrome 2 - 0 Studies
- Bare Lymphocyte Syndrome - 1 Studies
- Bare Lymphocyte Syndrome 2 - 0 Studies
- Baroreflex Failure - 1 Studies
- Barotrauma - 20 Studies
- Barraquer-Simons Syndrome - 9 Studies
- Barrett Esophagus - 140 Studies
- Barth Syndrome - 1 Studies
- Bartonella Infections - 3 Studies
- Bartter Syndrome - 3 Studies
- Basal Cell Carcinoma, Multiple - 0 Studies
- Basal Cell Nevus Syndrome - 2 Studies
- Becker Muscular Dystrophy - 31 Studies
- Beckwith-Wiedemann Syndrome - 0 Studies
- Behçet Disease - 0 Studies
- Behavior, Addictive - 435 Studies
- Behcet Syndrome - 29 Studies
- Bell Palsy - 27 Studies
- Benign Essential Blepharospasm - 26 Studies
- Benign Paroxysmal Positional Vertigo - 23 Studies
- Benign Schwannoma - 3 Studies
- Beriberi - 6 Studies
- Berylliosis - 5 Studies
- Beryllium Disease - 0 Studies
- Best Vitelliform Macular Dystrophy - 3 Studies
- Beta-galactosidase-1 Deficiency - 6 Studies
- Bethlem Myopathy - 3 Studies
- Bile Duct Cancer - 41 Studies
- Bile Duct Cysts - 2 Studies
- Bile Duct Diseases - 144 Studies
- Bile Duct Neoplasms - 13 Studies
- Bile Reflux - 6 Studies
- Biliary Atresia - 26 Studies
- Biliary Dyskinesia - 8 Studies
- Biliary Fistula - 4 Studies
- Biliary Tract Cancer - 81 Studies
- Biliary Tract Diseases - 104 Studies
- Biliary Tract Neoplasms - 26 Studies
- Binge Drinking - 24 Studies
- Binge-Eating Disorder - 100 Studies
- Biotinidase Deficiency - 2 Studies
- Birdshot Chorioretinopathy - 2 Studies
- Birt-Hogg-Dube Syndrome - 5 Studies
- Birth Injuries - 7 Studies
- Birth Weight - 24 Studies
- Bisphosphonate-Associated Osteonecrosis of the Jaw - 8 Studies
- Bites and Stings - 25 Studies
- BK-virus Nephropathy - 4 Studies
- Bladder Exstrophy - 7 Studies
- Blast Crisis - 24 Studies
- Blast Injuries - 2 Studies
- Blastic Plasmacytoid Dendritic Cell - 7 Studies
- Blastomycosis - 5 Studies
- Blepharitis - 25 Studies
- Blepharoptosis - 19 Studies
- Blepharospasm - 0 Studies
- Blind Loop Syndrome - 15 Studies
- Blindness - 26 Studies
- Blister - 24 Studies
- Blood Coagulation Disorders, Inherited - 23 Studies
- Blood Loss, Surgical - 26 Studies
- Blood Platelet Disorders - 24 Studies
- Blue Rubber Bleb Nevus Syndrome - 0 Studies
- Body Dysmorphic Disorders - 24 Studies
- Body Temperature Changes - 26 Studies
- Bone Cysts - 11 Studies
- Bone Demineralization, Pathologic - 5 Studies
- Bone Diseases, Developmental - 23 Studies
- Bone Diseases, Endocrine - 5 Studies
- Bone Diseases, Infectious - 18 Studies
- Bone Marrow Neoplasms - 8 Studies
- Bone Neoplasms - 25 Studies
- Bone Resorption - 25 Studies
- Borderline Personality Disorder - 36 Studies
- Bordetella Infections - 25 Studies
- Borrelia Infections - 23 Studies
- Botulism - 17 Studies
- Bourneville Syndrome - 17 Studies
- Bowen's Disease - 10 Studies
- Brachial Plexus Neuritis - 6 Studies
- Brachial Plexus Neuropathies - 2 Studies
- Brachydactyly - 0 Studies
- Bradycardia - 32 Studies
- Brain Abscess - 0 Studies
- Brain Concussion - 31 Studies
- Brain Damage, Chronic - 25 Studies
- Brain Death - 28 Studies
- Brain Diseases, Metabolic - 17 Studies
- Brain Diseases, Metabolic, Inborn - 2 Studies
- Brain Edema - 22 Studies
- Brain Hemorrhage, Traumatic - 7 Studies
- Brain Infarction - 24 Studies
- Brain Injury, Chronic - 16 Studies
- Brain Ischemia - 25 Studies
- Brain Stem Infarctions - 10 Studies
- Brain Stem Neoplasms - 13 Studies
- Brain Tumor, Adult - 23 Studies
- Brain Tumor, Childhood - 24 Studies
- Breakthrough Pain - 25 Studies
- Breast Cancer, Male - 25 Studies
- Breast Cyst - 3 Studies
- Breast Neoplasms, Male - 2 Studies
- Breech Presentation - 22 Studies
- Brenner Tumor - 10 Studies
- Brenner Tumor of Ovary - 0 Studies
- Brittle Diabetes - 6 Studies
- Broken Heart Syndrome - 19 Studies
- Bronchial Hyperreactivity - 25 Studies
- Bronchial Spasm - 16 Studies
- Bronchiectasis - 28 Studies
- Bronchiolitis - 31 Studies
- Bronchiolitis Obliterans - 25 Studies
- Bronchiolitis Obliterans Organizing Pneumonia - 3 Studies
- Bronchiolitis, Viral - 22 Studies
- Bronchitis - 0 Studies
- Bronchitis, Chronic - 0 Studies
- Bronchopneumonia - 2 Studies
- Bronchopulmonary Dysplasia - 29 Studies
- Brown-Sequard Syndrome - 2 Studies
- Brucellosis - 19 Studies
- Brugada Syndrome - 14 Studies
- Bruxism - 32 Studies
- Budd-Chiari Syndrome - 2 Studies
- Buerger Disease - 9 Studies
- Bulbo-Spinal Atrophy, X-Linked - 8 Studies
- Bulimia - 24 Studies
- Bulimia Nervosa - 7 Studies
- Bullous Pemphigoid - 29 Studies
- Bullying - 11 Studies
- Bundle-Branch Block - 22 Studies
- Burkholderia Infections - 7 Studies
- Burkitt Lymphoma - 25 Studies
- Burnett Schwartz Berberian Syndrome - 0 Studies
- Burning Mouth Syndrome - 22 Studies
- Burnout, Professional - 36 Studies
- Burns - 38 Studies
- Burns, Chemical - 6 Studies
- Bursitis - 25 Studies
- Buruli Ulcer - 4 Studies
