TY  - RPRT
TI  - How much sleep do we need?
AU  - Michele Ferrara
AU  - Luigi De Gennaro
PY  - 2001
DO  - 10.1053/smrv.2000.0138
UR  - https://pubmed.ncbi.nlm.nih.gov/12531052/
ID  - 12531052
ER  -