1. Action of genes affecting secondary sex ratio in man;Bernstein, M.E.;Science
2. Altered sex ratio in children of divers;Lyster, W.R.;Lancet
3. Sex ratio of offspring of pilots of high performance military aircraft;Snyder, R.G.;Human Biol
4. Children of anaesthetists;Wyatt, R.; Murray Wilson, A.;BMJ,1973
5. Birth sex ratios and prostatic cancer in butchers;Lloyd, M.M.; Lyster, W.R.; Lloyd, O.L.;Lancet,1987