TY - RPRT TI - A comparison between two methods for measuring tumor necrosis factor in biological fluids. AU - I M Garrelds AU - F J Zijlstra AU - C J Tak AU - I L Bonta AU - I Beckmann AU - S Ben-Efraim PY - 1993 DO - 10.1007/bf01991147 UR - https://pubmed.ncbi.nlm.nih.gov/8317331/ ID - 8317331 ER -