共 31 条
[2]
BEDFORD DE, 1937, BRIT ENCY MED PRACTI, V6, P206
[3]
BLAND PB, 1919, AM J OBSTET DIS WOM, V79, P184
[4]
Boorman K E, 1942, Br Med J, V2, P569
[5]
Boorman K E, 1942, Br Med J, V2, P535
[6]
BRONKHORST JJ, 1933, THESIS CORNELL U ITH
[7]
Buffon Georges., 1749, HIST NATURELLE
[8]
CRUICKSHANK JN, 1924, MED RES COUNCIL SPEC, V82
[9]
EPSTEIN A, 1913, ARCH KINDERHEILKD, V60, P289
[10]
FABER HK, 1947, AM J DIS CHILD, V74, P1