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Balthazar EJ, Megibow AJ, Hulnick D, Cho KC, Beranbaum E.Balthazar EJ, et al. Among authors: cho kc.AJR Am J Roentgenol. 1987 Nov;149(5):919-23. doi: 10.2214/ajr.149.5.919.AJR Am J Roentgenol. 1987.PMID: 2823585
Kravetz GW, Cho KC, Baker SR.Kravetz GW, et al. Among authors: cho kc.Gastrointest Radiol. 1988;13(2):163-6. doi: 10.1007/BF01889048.Gastrointest Radiol. 1988.PMID: 2452114
Smith TR, Cho KC, Morehouse HT, Kratka PS.Smith TR, et al. Among authors: cho kc.Dis Colon Rectum. 1990 Jan;33(1):1-6. doi: 10.1007/BF02053191.Dis Colon Rectum. 1990.PMID: 2295271