Frequency of Sale and Reasons for Purchase of Over-the-Counter Insulin in the United States Written by Goldstein JN, Patel RM, Bland K, Hicks LSon March 2, 2020December 13, 2021 Goldstein JN, Patel RM, Bland K, Hicks LS JAMA Intern Med 2019 05;179(5):722-723 PMID: 30776058 Abstract