共 16 条
[1]
ALWASH RH, 1987, THESIS U LONDON LOND
[2]
ALWASH RH, IN PRESS BR MED J
[3]
[Anonymous], 1982, INEQUALITIES HLTH BL
[4]
Butler N, 1980, Health Visit, V53, P81
[5]
FLEISS JL, 1977, STATISTICAL METHODS, P212
[8]
KELLER W K, 1971, Journal of the American Medical Association, V215, P277