TY  - JOUR
TI  - Menstrual Cycle Patterns of College Students in Gorgan–Northeast of Iran: Identify Its Association with Sociodemographic Factors
AU  - Gharravi, A.M.
JO  - Journal of Clinical Practice and Research
PY  - 2009
VL  - 31
SP  - 331
EP  - 338
DO  - 
ER  -