AUTHOR=Yang Hongguang , Liu Yao , Huang Zhenhe , Deng Guifang TITLE=Sex-specific associations of serum cotinine levels with depressive symptoms and sleep disorders in American adults: NHANES 2007-2014 JOURNAL=Frontiers in Psychiatry VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2024.1434116 DOI=10.3389/fpsyt.2024.1434116 ISSN=1664-0640