TY  - BOOK
AU  - Vollman,Rudolf F.
TI  - The menstrual cycle
SN  - 0721690750
PY  - 1977///
CY  - Philadelphia
PB  - W. B. Saunders
KW  - Menstrual cycle
KW  - Longitudinal studies
KW  - Statistical methods
KW  - Menstruation
N1  - Includes bibliographies and index
ER  -