3Robertson JS, Sheard AV, Altered sex ratio after an outbreak of hepatitis [J]. Lancet, 1973,1(7802) :532-534.
4Drew JS, London WT, Lustbader ED, et al. Hepatitis B Virus and Sex Ratio of Offsping[J]. Science, 1978,201(4357) :687- 692.
5Oster E. Hepatitis B and the Case of the Missing Women, Harvard University[J].J Polit Econ, 2005,113(6) : 1163-1216.
6Hesser JE, Economidou J, Bluemberg BS, et al. Hepatitis B surface antigen (Australia antigen) in parents and sex ratio of off-spring in a Greek population [ J ]. Hum Biol, 1975,47 ( 4 ) : 415- 425.
7C.azal P, Lemaire JM, Robinet-Levy M. Hepatitis B and ratio of masculinty [J], 1976,19(4) :577-581.
8Livadas D, Koutras DA, Economidou J, et al. Fertility and sex ratio of offspring of female HBsAg carriers [ J ]. J R Soc Med, 1979,72(7) :509-512.
9Drew J, London WT, Blumberg BS, et al. Hepatitis B virus and sex ratio on Kar Kar Island [ J ]. Hum Biol, 1982, 54 (1) : 123- 135.
10Drew JS, Blumberg BS, Robert-Lamblin J. Hepatitis B virus and sex ratio of offspring in East Greenland[J].Hum Biol, 1986,58 (1) : 115-120.
