TY - EJOUR T1 - A Method of Analysis for the Individual Tetracyclines of a Mixture in Biological Fluids AU - KELLY, R. G. AU - HOYT, K. D. PY - 1969 LA - und PB - Kooperation de Gruyter JO - Clinical Chemistry and Laboratory Medicine DO - 10.1515/cclm.1969.7.2.152 ER -