TY - RPRT TI - Randomised controlled trials: elements of a good study. AU - V J Gebski AU - E M Beller AU - A C Keech PY - 2001 DO - 10.5694/j.1326-5377.2001.tb143565.x UR - https://pubmed.ncbi.nlm.nih.gov/11587262/ ID - 11587262 ER -