CITATIONS

Term: psoriatic arthritis
Http://: https://ghr.nlm.nih.gov/condition/psoriatic-arthritis
Http://: http://en.wikipedia.org/wiki/Psoriatic_arthropathy
Http://: http://www.mayoclinic.com/health/psoriatic-arthritis/DS00476
Http://: http://www.nlm.nih.gov/medlineplus/ency/article/000413.htm