Why is the sex ratio falling in England and Wales?

[1] Harrison PTC., 1995, IEH assessment on environmental oestrogens: Consequences to human health and wildlife

[2] JAMES WH, 1987, HUM BIOL, V59, P873

[3] PARENTAL AGE, PARITY AND SEX-RATIO IN BIRTHS IN ENGLAND AND WALES, 1968-77 [J]. JOURNAL OF BIOSOCIAL SCIENCE, 1985, 17 (01) : 47 - 56

[4] JAMES WH, 1987, HUM BIOL, V59, P721

[5] LOW SEX-RATIOS OF BIRTHS IN AREAS AT RISK FROM AIR-POLLUTION FROM INCINERATORS, AS SHOWN BY GEOGRAPHICAL ANALYSIS AND 3-DIMENSIONAL MAPPING [J]. INTERNATIONAL JOURNAL OF EPIDEMIOLOGY, 1992, 21 (02) : 311 - 319

[1] Harrison PTC., 1995, IEH assessment on environmental oestrogens: Consequences to human health and wildlife

[2] JAMES WH, 1987, HUM BIOL, V59, P873

[3] PARENTAL AGE, PARITY AND SEX-RATIO IN BIRTHS IN ENGLAND AND WALES, 1968-77 [J]. JOURNAL OF BIOSOCIAL SCIENCE, 1985, 17 (01) : 47 - 56

[4] JAMES WH, 1987, HUM BIOL, V59, P721

[5] LOW SEX-RATIOS OF BIRTHS IN AREAS AT RISK FROM AIR-POLLUTION FROM INCINERATORS, AS SHOWN BY GEOGRAPHICAL ANALYSIS AND 3-DIMENSIONAL MAPPING [J]. INTERNATIONAL JOURNAL OF EPIDEMIOLOGY, 1992, 21 (02) : 311 - 319