Gastrointestinal endoscopy and gastroenterology: prologue, dialogue, epilogue.
D003362:Cost-Benefit Analysis; D004502:Education, Medical, Continuing / Q000639:trends; D004724:Endoscopy; D005762:Gastroenterology / Q000295:instrumentation / Q000592:standards / Q000639:trends; D006801:Humans; D012955:Societies, Medical