TY  - RPRT
TI  - Fetal EEG sleep stages and physiologic variability.
AU  - L I Mann
AU  - S Duchin
AU  - R R Weiss
PY  - 1974
DO  - 10.1016/0002-9378(74)90215-4
UR  - https://pubmed.ncbi.nlm.nih.gov/4842593/
ID  - 4842593
ER  -