"The question was could we use a screening tool to determine if people have psoriatic arthritis as a screening test for psoriasis in a larger population?"Dr Cheryl Rosen, head of Dermatology at Toronto Western Hospital, joins Kirk to talk about ToPAS2 and the article she co-authored in the May/June issue of JCMS, “The Assessment of the Toronto Psoriatic Arthritis Screen 2 as a Screening Tool for Psoriasis”They go over the history of the original ToPAS as a tool for diagnosis of psoriatic arthritis and how ToPAS2 turns that tool on its head so it can be used to diagnose psoriasis in regions that aren't served by dermatologists or in studies carried out by rheumatologists.Dr Cheryl Rosen is a professor of medicine at the University of Toronto and head of the division of Dermatology at Toronto Western Hospital.Her co-authors on this article are: Jennifer Taylor, Manika Deo, Mitchell Sutton, Vinod Chandran, Daniel Pereira, Sutha Shanmagurajah and Dafna Gladman.The article is available outside the paywall for three weeks after the posting of this interview:https://journals.sagepub.com/doi/abs/10.1177/12034754211061085?journalCode=cmsaFor more on the work of the Canadian Dermatology Association, please visit our website at dermatology.caJCMS Author Interviews is produced by the CDA and David McGuffin of Explore Podcast Productions in Ottawa.Our theme music was composed by Lee Rosevere.