The measurement of phenylalanine and tyrosine in blood.
D000328:Adult; D001681:Biological Assay; D002675:Child, Preschool; D005470:Fluorometry; D006801:Humans; D007202:Indicators and Reagents; D007223:Infant; D007231:Infant, Newborn; D008661:Metabolism, Inborn Errors; D008722:Methods; D008832:Microchemistry; D008875:Middle Aged; D009281:Naphthalenes; D009603:Nitroso Compounds; D010649:Phenylalanine / Q000097:blood*; D010661:Phenylketonurias; D014443:Tyrosine / Q000097:blood*
D007202:Indicators and Reagents; D009281:Naphthalenes; D009603:Nitroso Compounds; D014443:Tyrosine; D010649:Phenylalanine