Silarin, B., Hongrojjanawiwat, N., Chueaboonchai, T., & Temtanakitpisal, W. (2018). Amniotomy and umbilical cord prolapse: a systematic review. The Clinical Academia, 42(3), 87–95. retrieved from https://he02.tci-thaijo.org/index.php/theclinicalacademia/article/view/172758