@article{articlede2247e9,
title   = {Risk factors for the increasing caesarean section rate in Southeast Brazil: a comparison of two birth cohorts, 1978-1979 and 1994},
author = {Gomes, Uilho Antônio and Silva, Antônio A M and Bettiol, Heloisa and Barbieri, Marco Antonio},
year = {1999},
doi = {10.1093/ije/28.4.687},
journal   = {International Journal of Epidemiology}
}