Juraci A César assistant professor, Cesar G Victora professor, Fernando C Barros professor, Iná S Santos associate professor, José A Flores senior radiologist
César J A, Victora C G, Barros F C, Santos I S, Flores J A.
Impact of breast feeding on admission for pneumonia during postneonatal period in Brazil: nested case-control study
BMJ 1999; 318 :1316
doi:10.1136/bmj.318.7194.1316