TY - RPRT TI - Variability in creatine kinase: methodological, exercise, and clinically related factors. AU - T Hortobágyi AU - T Denahan PY - 1989 DO - 10.1055/s-2007-1024878 UR - https://pubmed.ncbi.nlm.nih.gov/2656549/ ID - 2656549 ER -