TY - RPRT TI - A dynamic block-randomization algorithm for group-randomized clinical trials when the composition of blocking factors is not known in advance. AU - Scarlett L Bellamy AU - NIMH Multisite HIV/STD Prevention Trial for African American Couples Study Group PY - 2005 DO - 10.1016/j.cct.2005.02.005 UR - https://pubmed.ncbi.nlm.nih.gov/16054579/ ID - 16054579 ER -