共 9 条
[1]
CANN CE, 1980, JAMA-J AM MED ASSOC, V244, P2056
[2]
CHRISTIANSEN C, 1981, LANCET, V1, P459
[4]
HORSMAN A, 1979, LANCET, V2, P33
[5]
HUTCHINSON TA, 1979, LANCET, V2, P705
[6]
LINDSAY R, 1978, LANCET, V1, P1325
[8]
STEVENSON JC, 1981, LANCET, V1, P693