9. Anderson, J.E., Becker, S., Guinena, A.H. and McCarthy, B.J. Breast Feeding Effects on Birth Interval Components: A Prospective Child Health Study in Gaza. Studies in Family Planning 1986; 17, 3: 153-160.
Data for the study was taken from a prospective study of 769 women in two Gaza refugee camps who gave birth in November and December of 1979. The women were followed up for 23 months. There was a strong association between breast feeding and (a) the length of post partum amenorrhea and (b) waiting time to conception. Possible reasons for this were discussed.