共 34 条
[1]
EARLY CLINICAL SIGNS IDENTIFY LOW-RISK PATIENTS WITH ACUTE UPPER GASTROINTESTINAL HEMORRHAGE
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1985, 253 (22)
:3282-3285
[8]
Dixon W. J., 1990, BMDP STAT SOFTWARE
[9]
EVERETT S, 1996, GUT S1, V39, pA4
[10]
FLEISCHER D, 1983, GASTROENTEROLOGY, V84, P538