Bioinformatic analysis and experimental validation of six cuproptosis-associated genes as a prognostic signature of breast cancer 1Department of Hainan General Hospital, Hainan Medical College, Haikou City, Hainan Province, China 2Department of The First Affiliated Hospital, Hainan Medical College, Haikou City, Hainan Province, China 3Department of The First Affiliated Hospital, Zhejiang University, Hangzhou City, Zhejiang Province, China DOI 10.7717/peerj.17419 Academic Editor Vladimir...