CorrespondenceLymphopenia and fumaric acid esters for psoriasis: a retrospective case series prompted by the European Medicines Agency's Pharmacovigilance Risk Assessment Committee (PRAC) recommendationsAuthorsL. Roche,Department of Dermatology, University Hospital Limerick, Dooradoyle, Limerick, IrelandSearch for more papers by this authorM. Lynch,Department of Dermatology, University Hospital Limerick, Dooradoyle, Limerick, IrelandSearch for more papers by this authorK.