Refine your search
Availability
-
Authors
-
Topics
- Adolescent
- Adult
- Analysis of Variance
- Antibodies
- Antigens, Surface
- Bacterial Infections
- Chorionic Gonadotropin
- Female
- Genital Diseases, Female
- History, 20th Century
- Humans
- Intrauterine Devices
- Male
- Pelvic Inflammatory Disease
- Postmenopause
- Pregnancy
- Pregnancy Complications
- Progesterone
- Regression Analysis
- Spermatozoa
- Show more
- Show less
-
Languages