Parikh R, Hess LM, Esterberg E, Bhandari NR, Kaye JA. Diagnostic characteristics, treatment patterns, and clinical outcomes for US patients with advanced/metastatic medullary thyroid cancer: a retrospective medical record review. J Thyroid Res. 2022;15(2). doi: 10.1186/s13044-021-00119-9
Mangel AW, Wang J, Sherrill B, Gnanasakthy A, Ervin C, Fehnel SE. Urgency as an endpoint in irritable bowel syndrome. Gastroenterology Research. 2011 Feb 1;4(1):9-12.