title: Foot-and-mouth disease virion RNA: studies on the relation between the length of its 3'-poly(A) segment and infectivity.
mesh_terms: D005537:Aphthovirus; D002499:Centrifugation, Density Gradient; D011061:Poly A / Q000032:analysis; D012367:RNA, Viral / Q000032:analysis* / Q000502:physiology; D014771:Virion
chemical_list: D012367:RNA, Viral; D011061:Poly A