Chomistek AK, Hoffman V, Urman R, Gill KS, Ezzy SM, Zhou L, Park AS, Loop B, Lopez-Leon S, McAllister P, Wang FT. Inpatient constipation among migraine patients prescribed anti-calcitonin gene-related peptide monoclonal antibodies and standard of care antiepileptic drugs: a retrospective cohort study in a united states electronic health record database. Pain Ther. 2022 Dec;11(4):1415-37. doi: 10.1007/s40122-022-00440-7
Reed (Earnshaw) SJ, Reed JH. The use of statistical quality control charts in monitoring interviewers. Proceedings of the Survey Research Methods Section, American Statistical Association. 1997 Jan;893-8.