TY - RPRT TI - Probing the hammerhead ribozyme structure with ribonucleases. AU - R A Hodgson AU - N J Shirley AU - R H Symons PY - 1994 DO - 10.1093/nar/22.9.1620 UR - https://pubmed.ncbi.nlm.nih.gov/8202361/ ID - 8202361 ER -