Daly K D, Prebil A M, Hilgers T W
Hosp Prog. 1980 Oct;61(10):56-8, 66.
Now that principles of NFP have been established specific programs are necessary to disperse information and to teach techniques. The hospital-based NFP program offers the community a needed service and benefits the hospital.
既然自然计划生育的原则已经确立，那么就需要有具体的项目来传播信息并教授相关技巧。以医院为基础的自然计划生育项目为社区提供了一项必要的服务，同时也使医院受益。
