O.A. Johnson

المجالات الفرعية

• Surgery764‎%‎
• Pulmonary and Respiratory Medicine436‎%‎
• Epidemiology327‎%‎
• Gastroenterology218‎%‎
• Infectious Diseases218‎%‎
• Pediatrics, Perinatology and Child Health218‎%‎
• Cardiology and Cardiovascular Medicine19‎%‎
• Hepatology19‎%‎
• Neurology19‎%‎
• Obstetrics and Gynecology19‎%‎

• Health Sciences

أكثر الموضوعات تناولًا

• Cholangiocarcinoma and Gallbladder Cancer Studies3
• Gastric Cancer Management and Outcomes2
• Pediatric Urology and Nephrology Studies2
• Abdominal Trauma and Injuries1
• Adrenal and Paraganglionic Tumors1
• Amoebic Infections and Treatments1
• Colorectal and Anal Carcinomas1
• Congenital Anomalies and Fetal Surgery1
• Eosinophilic Esophagitis1
• Esophageal Cancer Research and Treatment1
• Gastroesophageal reflux and treatments1
• Gastrointestinal Tumor Research and Treatment1