TY - RPRT TI - Structural sites specific to citrus viroid groups. AU - M I Francis AU - J A Szychowski AU - J S Semancik PY - 1995 DO - 10.1099/0022-1317-76-5-1081 UR - https://pubmed.ncbi.nlm.nih.gov/7730793/ ID - 7730793 ER -