E. Agacayak, S. Yaman Tunc, U. Deger, E. Demir Kusvuran, and S. Basaranoglu, “Risk factors predisposing to surgical evacuation after medical termination of pregnancy during the second trimester: A retrospective study”, Int. J. Basic Clin. Stud., vol. 2, no. 2, pp. 35–55, Sep. 2013.