https://www.selleckchem.com/products/dl-buthionine-sulfoximine.html g., having four or more lifetime sexual partners) and ever being tested for human immunodeficiency virus (HIV) among both LGB and heterosexual students but not with using a condom during last sexual intercourse among sexually active gay, bisexual, or heterosexual male students. Having a greater number of LGBTQ-supportive school policies and practices was significantly associated with lower odds of ever having sex for LGB students and with sexual risk behaviors and ever being tested for HIV for heterosexual students. Conclusion The study highlights the relationship between multifaceted LGBTQ-supportive school policies and practices and improving sexual health outcomes among both LGB and heterosexual students.Objective Twin to twin transfusion syndrome (TTTS) complicates 5-15% of monochorionic twin pregnancies and untreated is associated with a 90% mortality rate. The aim was to present the perinatal survival of patients with TTTS treated with laser ablation, by a national fetal medicine team. Methods This was a review of all cases of TTTS treated with fetoscopic laser ablation performed from March 2006 through to December 2020. All patients treated with fetoscopic laser were identified from the hospital database. The perinatal outcomes for the overall cohort and the individual Quintero stages were determined. Results A total of 155 cases of TTTS underwent fetoscopic laser ablation during the study period. The median gestational age at diagnosis was 19+1 weeks, with a mean growth discordance of 23.6%. The Quintero stage at diagnosis was Stage 1 6.5% (10/155), Stage 2 49% (76/155), Stage 3 38.7% (60/155), Stage 4 5.8% (9/155). There was at least one survivor in 83.2% (129/155) of pregnancies, with dual survival in 52.9% (82/155). An increase in the rate of any survivor was observed from 75% (2006-2014) to 94% (2014-2020) (p less then 0.05). Dual survival decreased with increasing Quintero Stage (p less