From the Food and Drug Administration.
Nightingale
S L
SL
Office of Health Affairs, FDA, Rockville, MD 20857.
D003195:Computer Communication Networks; D016603:Eosinophilia-Myalgia Syndrome; D006801:Humans; D004366:Nonprescription Drugs; D014364:Tryptophan; D014481:United States; D014486:United States Food and Drug Administration
D004366:Nonprescription Drugs; D014364:Tryptophan