Whitehead, Richard. Mucosal biopsy of the gastrointestinal tract / Richard Whitehead. - London : W. B. Saunders Company Ltd, 1973. - x, 202 p. : ill. ; 24 cm. - Major problems in pathology; no. 3. . Includes index. Includes bibliographic references. ISBN: 0721693032 (hbk.) Subjects--Topical Terms: Gastrointestinal system--Biopsy.Gastric mucosa--Biopsy.Gastrointestinal system--Diseases--Diagnosis.