共 26 条
[2]
BROGAN WF, 1980, LANCET, V2, P597
[4]
DIXON WJ, 1983, BMDP STATISTICAL SOF
[5]
EVELETH PB, 1978, WORLDWIDE VARIATIONS
[6]
Field B, 1979, Lancet, V1, P1341
[7]
HALLING H, 1977, ANN NY ACAD SCI, V320, P426
[10]
INFANTE PF, 1976, LANCET, V1, P734