Ochi, Harumi Contact allergy trends in Singapore - a retrospective study of patch test data from 2009 to 2013. [electronic resource] - Contact dermatitis Jan 2017 - 49-50 p. digital Publication Type: Journal Article ISSN: 1600-0536 Standard No.: 10.1111/cod.12629 doi Subjects--Topical Terms: AdultAllergens--adverse effectsDermatitis, Allergic Contact--diagnosisFemaleHumansMaleNickel--adverse effectsPatch TestsPerfume--adverse effectsPhenylenediamines--adverse effectsPotassium Dichromate--adverse effectsRetrospective StudiesSingapore--epidemiology