TY  - RPRT
TI  - Normal sleep: patterns and mechanisms.
AU  - E O Bixler
AU  - A Vela-Bueno
PY  - 1987
DO  - 10.1055/s-2008-1041422
UR  - https://pubmed.ncbi.nlm.nih.gov/3332457/
ID  - 3332457
ER  -