共 15 条
[1]
BANNISTER R, 1979, LANCET, V2, P404
[7]
FAULK DL, 1978, GASTROENTEROLOGY, V74, P922
[9]
HOPKINS A, 1974, LANCET, V1, P769
[10]
LEWIS TD, 1978, GASTROENTEROLOGY, V74, P107