Zhou, Xu Dong; Wang, Xiao Lei; Li, Lu; Hesketh, Therese - In: Social Science & Medicine 73 (2011) 9, pp. 1422-1427
China has the highest male to female sex ratio at birth (SRB) in the world, with levels highest in poor rural areas. Rural-to-urban migration also occurs on a huge scale, but household registration regulations prevent rural-dwellers from settling permanently in cities. However, urban...