Authors: L J Launer; M R Forman; G L Hundt; B Sarov; D Chang; H W Berendes; L Naggan Journal: J Epidemiol Community Health Date: 1992-06 Impact factor: 3.710
Authors: D Mbori-Ngacha; R Nduati; G John; M Reilly; B Richardson; A Mwatha; J Ndinya-Achola; J Bwayo; J Kreiss Journal: JAMA Date: 2001-11-21 Impact factor: 56.272