RT Journal Article SR Electronic T1 Can nicotine use alleviate symptoms of psoriasis? JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 404 OP 408 VO 58 IS 4 A1 John Staples A1 Douglas Klein YR 2012 UL http://www.cfp.ca/content/58/4/404.abstract AB