We performed a cross sectional observational study between January and December 2010 in the gastroenterology service at Hospital El Tunal in Bogota D.C. The study population chosen included all patients over 18 years of age who came to the urgent care clinic and who underwent ERCP for suspected choledocholithiasis.
Se realizó un estudio observacional analítico de corte transversal entre enero y diciembre del 2010 en el servicio de Gastroenterología del Hospital el Tunal de la ciudad de Bogotá D.C.