Bell CF, Ajmera M, Meyers J. Retrospective analysis of the burden of illness of eosinophilic granulomatosis with polyangiitis (EGPA) versus asthma in commercially insured US patients. Cureus J Med Science. 2023 Jul 21;15(7):e42241. doi: 10.7759/cureus.42241
Candrilli SD, Davis KL, Iyer S. Impact of constipation on opioid use patterns, health care resource utilization, and costs in cancer patients on opioid therapy. J Pain Palliat Care Pharmacother. 2009 Sep 1;23(3):231-41.