Çekin, Burcu, and Türkan Turan. “The Stress Levels of Parents of Premature Infants and Related Factors in Nenoatal Intensive Care Units”. The Turkish Journal of Pediatrics, vol. 60, no. 2, Apr. 2018, pp. 117-25, https://doi.org/10.24953/turkjped.2018.02.001.