TY  - RPRT
TI  - L-tryptophan as a physiological hypnotic.
AU  - E Hartmann
PY  - 1971
DO  - 10.1016/s0140-6736(71)91254-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4101310/
ID  - 4101310
ER  -