Ali, Reem, Wendy Hall, Fay Warnock, Sabrina Wong, and Pam Ratner. 2014. “Quality of Preterm Infants’ Night Sleep: And Online Community-Based Survey of Maternal Factors and Perceptions of Infants’ Nighttime Awakenings and Sleep Problems”. International Journal of Advanced Nursing Studies 3 (2): 59-64. https://doi.org/10.14419/ijans.v3i2.2412.