title: The challenge of the nineties: family planning directions and the role of operations research.
authors.forename: D
authors.initials: D
authors.lastname: Liberi
mesh_terms: D003906:Developing Countries; D004059:Diffusion of Innovation; D005193:Family Planning Services / Q000458:organization & administration* / Q000706:statistics & numerical data / Q000639:trends; D005544:Forecasting; D006077:Government Agencies / Q000458:organization & administration* / Q000706:statistics & numerical data / Q000639:trends; D006284:Health Plan Implementation; D006287:Health Planning Guidelines; D006292:Health Priorities; D006801:Humans; D009874:Operations Research; D014481:United States