1 Section of Medical Anthropology, UFR of Health Science, UVSQ, Dante Laboratory, 2 Avenue de la Source de la Bièvre, 78180 Montigny-Le-Bretonneux, France; CASH & IPES, Nanterre, France. Electronic address: philippe.charlier@uvsq.fr.
2 Section of Medical Anthropology, UFR of Health Science, UVSQ, Dante Laboratory, 2 Avenue de la Source de la Bièvre, 78180 Montigny-Le-Bretonneux, France.