1. Endocrinology of women;Botella-Llusia,1973
2. Cross-cultural factors that affect age of menopause;Flint,1976
3. Changing age of menopause;Frommer;Br. Med. J.,1964
4. The menopause — epidemiological and demographic considerations;Gray,1976
5. Menarche and menopause in Israel;Hauser;Gynecologia,1963