TY - RPRT TI - Surrogate markers in clinical studies: problems solved or created? AU - Braden Manns AU - William F Owen AU - Wolfgang C Winkelmayer AU - P J Devereaux AU - Marcello Tonelli PY - 2006 DO - 10.1053/j.ajkd.2006.03.044 UR - https://pubmed.ncbi.nlm.nih.gov/16797400/ ID - 16797400 ER -