TY - GEN AU - Peterkofsky,B TI - Use of a new radioassay for tryptophan oxygenase to study the development of the enzyme in chick embryos SN - 0003-9861 PY - 1969///0228 KW - Age Factors KW - Amidohydrolases KW - metabolism KW - Animals KW - Carbon Isotopes KW - Chick Embryo KW - enzymology KW - Formates KW - Kynurenine KW - Liver KW - embryology KW - Methods KW - Rats KW - Spectrophotometry KW - Tryptophan Oxygenase KW - analysis N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/0003-9861(68)90073-8 ER -