共 15 条
[11]
WILKES E, 1965, LANCET, V1, P799
[12]
1980, MORTALITY STATIS DH1, V6
[13]
1980, OPCS MONITOR MID 197
[14]
1980, 1978 REG GEN SCOTL 2
[15]
1980, OVER 2600000 MACMILL