Consider Hereditary Angioedema in the Differential Diagnosis for Unexplained Recurring Abdominal Pain.

"K.S. reports research grants from Ironwood and Urovant, consulting fees from Boston Pharmaceuticals, Gelesis, and GI Supply; consulting and speaker fees from Takeda; and was a member of the Data and Safety Monitoring Board for Arena Pharmaceuticals, outside the submitted work. A.B. reports institutional research/study support from BioCryst, Ionis, and Takeda, and/or honoraria for consulting from BioCryst, CSL Behring, KalVista, Pharming, Pharvaris, and Takeda, outside the submitted work. J.A.B. reports being a clinical investigator for BioCryst, CSL Behring, Ionis, KalVista, Pharming, and Takeda; a speaker for CSL Behring, Pharming, and Takeda; and a consultant for BioCryst, CSL Behring, Fresenius Kabi, Ionis, KalVista, Pharming, BioMarin, and Takeda, outside the submitted work; he is an advisory board member of the US Hereditary Angioedema Association. E.D.S. served as consultant for Bausch Health, Mahana, and GI Supply, outside the submitted work. M.A.R. reports research grants from BioCryst, BioMarin, CSL Behring, Ionis, Kalvista, Pharming, Pharvaris, and Takeda; consulting fees from Adverum, Attune, BioCryst, BioMarin, CSL Behring, Cycle Pharma, Fresenius-Kabi, Ionis, KalVista, Pharming, Pharvaris, Regexbio, and Takeda; and payments for lectures from CSL Behring, Pharming, and Takeda, outside the submitted work; he is an advisory board member of the US Hereditary Angioedema Association. A.L. declares that he has nothing to disclose."

"Under the direction of the authors, Latoya M. Mitchell, PhD, CMPP, and Lindsay Napier, PhD, CMPP, of Excel Medical Affairs provided writing assistance for this manuscript. Editorial assistance in formatting, proofreading, and copy editing also was provided by Excel Medical Affairs. Takeda Development Center Americas, Inc., provided funding to Excel Medical Affairs for support in writing and editing this manuscript. This review was sponsored by Takeda Development Center Americas, Inc. The sponsor had a role in the planning of the review and reviewed the final manuscript. Interpretation and analysis of the literature was made independently of the sponsor."