title: Cigarette smoking in men may be a risk factor for increased severity of psoriasis of the extremities.
authors.forename: M A
authors.initials: MA
authors.lastname: Gupta
authors.forename: A K
authors.initials: AK
authors.lastname: Gupta
authors.forename: G N
authors.initials: GN
authors.lastname: Watteel
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000209:etiology* / Q000473:pathology; D012307:Risk Factors; D012867:Skin / Q000473:pathology; D012907:Smoking / Q000009:adverse effects*