Population differences and the effect of vaginal progesterone on preterm birth in women with threatened preterm labor (.).

Objective: Threatened preterm labor (tPTL) is a complication of pregnancy. Identification of women and clinical definition differs between countries. This study investigated differences in tPTL and effectiveness of vaginal progesterone to prevent preterm birth (PTB) between two countries.

Recreational use of phosphodiesterase type 5 inhibitors by healthy young men.

Introduction: In recent years, PDE5 inhibitors (PDE5i) use has become more popular among men without ED to enhance sexual performance. However, reports in the literature are scarce.

Aim: The aim of this study was to evaluate the recreational use of PDE5i in healthy young men.

Birth of a healthy baby after transfer of embryos that were cryopreserved for 8.9 years.

Objective: To report successful pregnancy from embryos that had been cryopreserved for 8.9 years.

Design: Case report.