Many of us know snakes are ectothermic reptiles that regulate their body temperature behaviorally by using shade, burrows, ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

In natural cycles, there is no endometrial thickness threshold at which the live birth rate is impacted. HealthDay News — For patients undergoing single euploid frozen embryo transfer, endometrial ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...