TY - RPRT TI - Chromosomal cohesin forms a ring. AU - Stephan Gruber AU - Christian H Haering AU - Kim Nasmyth PY - 2003 DO - 10.1016/s0092-8674(03)00162-4 UR - https://pubmed.ncbi.nlm.nih.gov/12654244/ ID - 12654244 ER -