ASA: aquagenic syringeal acrokeradermatoma; PCOS: polycystic ovarian syndrome; HIV+: human immunodeficiency virus positive; CFTR: cystic fibrosis transmembrane conductance regulator; SC: stratum corneum; COVID-19: Coronavirus Disease 2019; n/a: not applicable; -: no prior medical history. This evidence concerns the gene CFTR and polycystic ovary syndrome.