D. A. Cırık, E. A. Taşkın, A. Tuğlu, A. S. Ortaç, and Ömer Dai, “Paracervical block with 1% lidocaine for pain control during intrauterine device insertion: a prospective, single-blinded, controlled study”, Int J Reprod Contracept Obstet Gynecol, vol. 2, no. 3, pp. 263–267, Dec. 2016.