共 29 条
[1]
[Anonymous], 1992, INT CLASS DIS
[2]
[Anonymous], 1963, Perinatal mortality : the first report of the 1958 British perinatal mortality survey, under the auspices of the National Birthday Trust Fund
[3]
[Anonymous], 1982, LONGITUDINAL STUDY S
[5]
Brown J, 1997, Popul Trends, P40
[6]
Brown J, 1998, Popul Trends, P35
[7]
Butler NR., 1969, Perinatal problems