有一篇文献,是根据出生性别比测算,1970到2017年有23.1million女性没有出生,其中来自中国的是11.9million,这还没有算上那些被抛弃和虐待致死的女童…唉……Chao, F., Gerland, P., Cook, A. R. and Alkema, L. (2019) ‘Systematic assess- ment of the sex ratio at birth for all countries and estimation of national imbalances and regional reference levels’.