Effects of Low Oral Doses of Melatonin, Given 2–4 Hours before Habitual Bedtime, on Sleep in Normal Young Humans.
Irina V. Zhdanova, Richard J. Wurtman, Claudia Morabito, Veronika R. Piotrovska, and Harry J. Lynch, Sleep 19, no. 5 (1996): 423–31.
Irina V. Zhdanova, Richard J. Wurtman, Claudia Morabito, Veronika R. Piotrovska, and Harry J. Lynch, Sleep 19, no. 5 (1996): 423–31.