Langman, M. J. S. A concise textbook of gastroenterology / by M. J. S. Langman - 2nd ed. - Edinburgh : Churchill Livingstone, 1982 - 249 p. : ill. ; 22 cm. - Churchill Livingstone medical text . ISBN: 0443020558 Subjects--Topical Terms: Gastrointestinal diseases National Library of Medicine Call No.: WI100.3 / .L284c 1982