Koh, Yee Woen, Yesim KARAKAYA, Chui Yi Chan, Ph.D., Catherine So-Kum Tang, Ph.D, and Jean Wei-Jun Yeung, Ph.D. 2017. “The Prevalence and Risk Factors of Paternal Sleep Problems Across the Perinatal Period in Hong Kong - a Longitudinal Study”. European Journal of Multidisciplinary Studies 2 (7): 336-36. https://doi.org/10.26417/ejms.v6i2.p336-336.