25402Using 30-cluster survey to assess neonatal and perinatal mortality [letter]Journal articles · January 1, 1991
25403Planificar los programas de salud para consolidarlos y mejorarlosJournal articles · January 1, 1991
25408The Elektrostal project : better nutrition for Soviet workers / by Elena StrootJournal articles · January 1, 1991
25414Les conséquences du syndrome de dépendance tabagique pour les programmes antitabacJournal articles · January 1, 1991
25416Le Développement rationnel de la prise en charge thérapeutiqueJournal articles · January 1, 1991
25417Health services are casualties too / by John Ash and Mike GomezJournal articles · January 1, 1991