@article{Adair1993, author = {Adair, L.S. and Popkin, B.M. and Guilkey, D.K.}, title= {The duration of breast-feeding: How is it affected by biological, sociodemographic, health sector, and food industry factors?}, year = {1993}, doi = {10.2307/2061863}, journal = {Demography }, volume = {30}, number = {1}, pages = {63‒80}, }