aDivision of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine

bCenter for Drug Safety and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee

cDepartment of Ophthalmology, Illinois Eye and Ear Infirmary, University of Illinois Chicago, Chicago, Illinois

dDepartment of Ophthalmology, Loyola University Medical Center, Maywood, IL, USA

Correspondence to Elizabeth Phillips, MD, Center for Drug Safety and Immunology, Vanderbilt University Medical Center, 1161 – 21st Avenue South, Nashville, TN 37232, USA. Tel: +1 615 322 9174; e-mail: [email protected]