共 19 条
[1]
Breslow NE, 1980, IARC SCI PUBL, V32
[2]
NONSMOKING - A FEATURE OF ULCERATIVE-COLITIS
[J].
BMJ-BRITISH MEDICAL JOURNAL,
1982, 285 (6339)
:440-440
[3]
NONSMOKING - A FEATURE OF ULCERATIVE-COLITIS
[J].
BRITISH MEDICAL JOURNAL,
1982, 284 (6330)
:1706-1706
[4]
FLEISS JL, 1980, STATISTICAL METHODS
[5]
GYDE SN, 1983, NEW ENGL J MED, V308, P1476
[10]
LOGAN R, 1984, BRIT MED J, V288, P1307, DOI 10.1136/bmj.288.6426.1307-b