共 19 条
[2]
BONNEVIE O, 1978, GASTROENTEROLOGY, V75, P1055
[3]
BOROWSKY SA, 1981, GASTROENTEROLOGY, V80, P1405
[6]
CUTLER SJ, 1958, J CHRON DIS, V8, P699
[9]
Elandt-Johnson R. C., 1980, SURVIVAL MODELS DATA