Maintenance work on the ZORA database servers is scheduled for Thursday 25th July 2019 from 19:00-20:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Landolt, H P; Dijk, D J (2010). Genetic basis of sleep in healthy humans. In: Kryger, M H; Roth, T; Dement, C W. Principles and practice of sleep medicine (5th ed.). Philadelphia, Pa., US: Saunders/Elsevier, 175-183.