LONDON, England, July 10 -- BJOG, a peer-reviewed journal that says it features obstetrics and gynaecology, including contraception, urogynaecology, fertility, oncology and clinical practice from the Royal College of Obstetricians and Gynaecologists, published research articles, including the following topics, in its August 2020 edition:

Systematic reviews:

* Effect of progestogen for women with threatened miscarriage: a systematic review and meta-analysis