E Franco

Clostridium perfringens and somatic coliphages as indicators of the efficiency of drinking water treatment for viruses and protozoan cysts

P. Payment, E. Franco, P Payment, 1993, Applied and environmental microbiology.

Design and methods of the Ludwig-McGill longitudinal study of the natural history of human papillomavirus infection and cervical neoplasia in Brazil. Ludwig-McGill Study Group.

M. Petzl-Erler, T. Rohan, A. Ferenczy, 1999, Revista panamericana de salud publica = Pan American journal of public health.