Utility and safety of skin tests in drug reaction with eosinophilia and systemic symptoms (DRESS): a systematic review Running title : Skin tests in drug reaction with eosinophilia and systemic symptoms (DRESS)Ying Xin Teo MB BChir1,2 , Peter Simon Friedmann MD FRCP1,2, Marta Ewa Polak PhD1, Michael Roger Ardern-Jones DPhil FRCP1,2Clinical Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, United Kingdom2 Department of Dermatology, Southampton General Hospital, University Hospitals Southampton NHS Foundation TrustAcknowledgements : noneFunding sources: This work was supported by the British Skin Foundation [grant number BSF023F19].Conflict of interest: The authors have no conflicts of interests to declareText word count: 752