Claire Graber

Cohort Profile: the international epidemiological databases to evaluate AIDS (IeDEA) in sub-Saharan Africa.

Kara Wools-Kaloustian, Matthias Egger, Paula Braitstein, 2012, International journal of epidemiology.

Electronic medical record systems, data quality and loss to follow-up: survey of antiretroviral therapy programmes in resource-limited settings.

Matthias Egger, Christopher Bailey, Olivia Keiser, 2008, Bulletin of the World Health Organization.