Symptom assessment in hypereosinophilic syndrome: Toward development of a patient-reported outcomes tool

Nicholas C. Kovacs, Katy Benjamin, Nicole Holland‐Thomas, Olga Moshkovich, Linda Nelsen, Héctor Ortega, Ethan J. Schwartz, Jonathan Steinfeld, Suyong Yun Kirby, Amy D. Klion, Paneez Khoury