References
- Ali , Mohamed and Cleland , John . 1995 . Contraceptive discontinuation in six developing countries: a cause‐specific analysis . Internat. Fam. Plan. Persp. , 21 (3) : 92 – 97 .
- Allison , Paul D. 1985 . Survival analysis of backward recurrence times . J. Amer. Statist. Assoc. , 80 (390) : 315 – 322 .
- Cleveland , W. S. and Devlin , Sarah J. 1988 . Locally weighted regression: An approach to regression analysis by local fitting . J. Amer. Statist. Assoc. , 83 : 596 – 610 .
- Cox , D. R. 1962 . Renewal theory , New York : Barnes and Noble .
- Hadley , A. 1983 . Running a natural course . Nursing Mirror. , 156 (2) : i – vi .
- Hammerslough , Charles R. 1991 . “ Alternative methodologies to estimate contraceptive use‐failure rates applied to the 1982 national survey of family growth. Measuring the dynamics of contraceptive use ” . 71 – 82 . New York : U.N. Department of International Economic and Social Affairs .
- Institute for Resource Development . 1989 . Demographic and Health Surveys, Phase I—Bolivia , Salt Lake City , Utah : Macro Systems Incorporated .
- _____ . 1992 . Demographic and Health Surveys, Phase I—Egypt , Salt Lake City , Utah : Macro Systems Incorporated .
- _____ . 1993 . Demographic and Health Surveys, Phase I—Kenya , Salt Lake City , Utah : Macro Systems Incorporated .
- _____ . 1987 . Demographic and Health Surveys, Phase I—Sri Lanka , Salt Lake City , Utah : Macro Systems Incorporated .
- _____ . 1987 . Demographic and Health Surveys, Phase I—Thailand , Salt Lake City , Utah : Macro Systems Incorporated .
- _____ . 1989 . Demographic and Health Surveys, Phase I—Zimbabwe , Salt Lake City , Utah : Macro Systems Incorporated .
- Sheps , Mindel C. and Menken , Jane A. 1973 . Mathematical models of conception and birth , 154 Chicago : Univ. of Chicago Press .
- Sheon , Amy R. and Stanton , Cynthia . 1989 . Use of periodic abstinence and knowledge of the fertile period in 12 developing countries . Internat. Fam. Plan. Persp. , 15 (1) : 29 – 34 .
- Westoff , Charles F. 1991 . Reproductive preferences: A comparative view , DHS Comparative Studies, No. 3 Columbia , Maryland : Institute for Resource Development .