Altınay-Kırlı, Elif, et al. “A Rare Cause of Abdominal Pain: Ectopic Ovary and Intestinal Malrotation”. The Turkish Journal of Pediatrics, vol. 59, no. 6, Dec. 2017, pp. 699-03, https://doi.org/10.24953/turkjped.2017.06.014.