4Swenson DW, Lqurenco AP, Beaudoin FL,et aI.Ovarian torsion : case -control study comparing the sensitivity and specificity ofuhrasonography and computed tomography for diagnosis in the emergency department. Eur J Radiol, 2014,83(4) : 733-738.
5Summers CL.Considering culture in the use of problem-based learning to improve critical thinking-is it important? Nurse Educ Today,2014,34(7) : 1109-1111.
6Abdullah M,Firnlansyah MA.Diagnostic approach and management of acute abdominal pain.Acta Med lndones, 2012,44(4 ) : 344-350.