Sexual risk of HIV infection among expatriates posted in AIDS endemic areas.

Journal: AIDS (London, England)

Publication Year: 1997

Authors & Co-authors:  de Graaf R R van Zessen G G Houweling H H Ligthelm R J RJ van den Akker R R

Occupational risk of HIV infection among western health care professionals posted in AIDS endemic areas.

Journal: AIDS care

Publication Year: 1998

Authors & Co-authors:  de Graaf R R Houweling H H van Zessen G G