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Troidl, H. and Lorenz, Wilfried and Rohde, H. and Häfner, G. and Ronzheimer, M. (1976) Histamine and peptic ulcer: a prospective study of mucosal histamine concentration in duodenal ulcer patients and in control subjects suffering from various gastrointestinal diseases. Klinische Wochenschrift 54 (19), pp. 947-956.
Troidl, H. and Lorenz, Wilfried and Rohde, H. and Häfner, G. and Ronzheimer, M. and Seidel, W. (1974) Proceedings: Histamine concentration in the human gastric mucosa and its relation to pentagastrin-stimulated acid secretion. The British journal of surgery 61 (4), p. 323.