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1. Buis, ML. Creating a counter with alphabets.The Stata forum. 2017 March; 06:38

2. Muzaale, AD. Databases for surgical health services research: National Health and Nutrition Examination Survey. Surgery 2019 May;165(5):873-875. doi: 10.1016/j.surg.2018.02.006. Epub 2018 Apr 27.