Are there any countries on the planet that do n't practice general medicine ?
There are many subspecialities ( or subdisciplines ) of internal medicine : * " Angiology / Vascular Medicine " * " Cardiology " * " Critical care medicine " * " Endocrinology " * " Gastroenterology " * " Geriatrics " * " Hematology " * " Hepatology " * " Infectious diseases " * " Nephrology " * " Neurology " * " Oncology " * " Pediatrics " * " Pulmonology / Pneumology / Respirology " * " Rheumatology " Training in internal medicine ( as opposed to surgical training ) , varies considerably across the world : see the articles on Medical education and Physician for more details .