Cigarette smoking in men may be a risk factor for increased severity of psoriasis of the extremities.
Gupta
M A
MA
Gupta
A K
AK
Watteel
G N
GN
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*