1. Higher Antineutrophil Cytoplasmic Antibody (C-ANCA) Titers are Associated with Increased Overall Healthcare Use in Patients with Sinonasal Manifestations of Granulomatosis with Polyangiitis (GPA). Issue 3 (May 2015) Authors: Janisiewicz, Agnieszka M.; Klau, Marc H.; Keschner, David B.; Lehmer, Randy R.; Venkat, Kumar V.; Medhekar, Swati S.; Chang, Parke K.; Badran, Karam; Leary, Ryan; Garg, Rohit; Nguyen, Andrew A.; Lee, Jivianne T. Journal: American journal of rhinology & allergy Issue: Volume 29:Issue 3(2015) Page Start: 202 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗