https://www.selleckchem.com/pr....oducts/Roscovitine.h
BACKGROUND Despite well-described sex differences in asthma incidence, there remains uncertainty about the role of female sex hormones in the development of asthma. OBJECTIVE We sought to investigate whether hormonal contraceptive use, its subtypes, and duration of use were associated with new-onset asthma in reproductive-age women. METHODS Using the Optimum Patient Care Research Database, a UK national primary care database, we constructed an open cohort of 16- to 45-year-old women (N = 564,896) followed for up to 17 years (ie, Jan
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