Nakajima, M., Dokam, A., Kasim, A. N., Alsoofi, M., Khalil, N. S., & al’Absi, M. (2014). Habitual Khat and Concurrent Khat and Tobacco Use Are Associated With Subjective Sleep Quality. Centers for Disease Control and Prevention.

Nakajima, Motohiro, Anisa Dokam, Abed Naji Kasim, Mohammed Alsoofi, Najat Sayem Khalil, and Mustafa al’Absi. Habitual Khat and Concurrent Khat and Tobacco Use Are Associated With Subjective Sleep Quality. Centers for Disease Control and Prevention, 2014.

Nakajima, Motohiro, et al. Habitual Khat and Concurrent Khat and Tobacco Use Are Associated With Subjective Sleep Quality. Centers for Disease Control and Prevention, 2014.