共 16 条
[11]
JONES RAK, 1979, LANCET, V1, P1332
[12]
PRODHOLM LS, 1972, PERINATAL MED, P172
[13]
STEWART A, 1978, MAJOR MENTAL HANDICA, P151
[14]
MORTALITY STATISTICS
[15]
1944, 2044 MIN HLTH CIRC
[16]
1980, BIRTHWEIGHT STATISTI