title: [The involvement of non-governmental organizations in health systems in developing countries: example of Shisong Cardiac Centre].
authors.affiliation: St. Elizabeth catholic general hospital Shisong, cardiac unit. Po.Box: 8, Kumbo, Cameroon.
authors.forename: Jacques Cabral
authors.initials: JC
authors.lastname: Tantchou Tchoumi
authors.forename: Jean Claude
authors.initials: JC
authors.lastname: Ambassa
authors.forename: Gianfranco
authors.initials: G
authors.lastname: Butera
authors.forename: Alessandro
authors.initials: A
authors.lastname: Giamberti