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Sexual medicine covers a wide range of issues related to sexual health and well-being at different stages of life.

Public Release: 4-Jun-2015 PLOS An artificial intelligence system has for the first time reverse-engineered the regeneration mechanism of planaria--the small worms whose extraordinary power to regrow body parts has made them a research model in human regenerative medicine. The discovery by Tufts University biologists presents the first model of regeneration discovered by a non-human intelligence…

Objective To estimate the excess relative and absolute risks of hospital admissions and emergency department visits for natural causes, cardiovascular disease, and respiratory disease associated with daily exposure to fine particulate matter (PM2.5) at concentrations below the new World Health Organization air quality guideline limit among adults with health insurance in the contiguous US. Design Case time series study. Setting US national administrative healthcare claims database. Participants 50.1 million commercial and Medicare Advantage beneficiaries aged ≥18 years between 1 January 2010...

Objective To estimate exposure-response associations between chronic exposure to fine particulate matter (PM2.5) and risks of the first hospital admission for major cardiovascular disease (CVD) subtypes. Design Population based cohort study. Setting Contiguous US. Participants 59 761 494 Medicare fee-for-service beneficiaries aged ≥65 years during 2000-16. Calibrated PM2.5 predictions were linked to each participant’s residential zip code as proxy exposure measurements. Main outcome measures Risk of the first hospital admission during follow-up for ischemic heart disease, cerebrovascul...

Objective To assess optimal timing of influenza vaccination in young children. Design Population based cohort study. Setting United States. Participants Commercially insured children aged 2-5 years who were vaccinated against influenza during 2011-18. Main outcome measure Rates of diagnosis of influenza among children who were vaccinated against influenza, by birth month. Results Overall, 819 223 children aged 2-5 received influenza vaccination. Children vaccinated in November and December were least likely to have a diagnosis of influenza, a finding that may be confounded by unmeasured fact...