Embryo Glue: The Use of Hyaluronan in Embryo Transfer Media.

EmbryoGlue is available to patients at many in vitro fertilization clinics, usually at an additional cost. The efficacy of hyaluronan-enriched transfer medium (HETM) is supported by moderate quality evidence that indicates a significant improvement in clinical outcomes such as live birth rates for patients, including poorer prognosis women (i.e.

An endocrine basis for tomboy identity: The second-to-fourth digit ratio (2D:4D) in "tomboys".

This paper investigates the relationship between organizational effects of pre-natal testosterone and the use of "tomboy" as a descriptor for young women. We show in a sample of 44 women that a woman's right hand 2D:4D ratio is a significant predictor of whether they will be labeled as a "tomboy", with a decrease in 2D:4D ratio corresponding to an increase in the probability of being called "tomboy". Taking the right hand 2D:4D ratio as a proxy for the abundance of testosterone in the early life hormonal milieu, we propose that organizing effects of higher pre-natal T lead to increased masculine-typical behavior in childhood, which increases the likelihood some women will be referred to as tomboys.