TY - RPRT TI - Quantitative liver function tests as surrogate markers for end-points in controlled clinical trials: a retrospective feasibility study. AU - E Lotterer AU - J Högel AU - W Gaus AU - W E Fleig AU - J Bircher PY - 1997 DO - 10.1002/hep.510260609 UR - https://pubmed.ncbi.nlm.nih.gov/9397982/ ID - 9397982 ER -