الفهرس 
review of literatureOnly 14 pages are availabe for public view
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Abstract
Abortion is a distressing problem for both the patient and the physician- The magnitude of fetal wastage in humans in considerable, approaching a loss up to three quarters of fertilized ova and 15X of recognized clinical pregnancies.
One of its singificant problems relates to the poat-abortive advice regarding timing of contraception. The need to tccurately predict ovulation in women stems from two concerns- One, is to optimize the chance of fertilization khen offspring are desired. Thus, sexual intercourse timed t or very near ovulation greatly increases a woman’s mces to become pregnant. The second, is for reasons of itraception, when pregnancy is not desired, unprotected tual intercourse during the least fertile period of the netrual cycle is suggested and abstinence during the rtile period is observed For years ovulation was monitored entirely by clinical raneters. Later with the advent of radio imnunassay onal parameters predominated including FSH, LH,En and P-Becently serial ovarian ultrasonography using the Inal route permits the direct assessroeent of the number size of the follicles, the follicular growth pattern and ttpearance of the dominant follicle. Subjects of this