title: Are the 5' ends of influenza viral mRNAs synthesized in vivo donated by host mRNAs?
mesh_terms: D001483:Base Sequence; D009975:Orthomyxoviridae / Q000235:genetics / Q000378:metabolism*; D012315:RNA Caps / Q000378:metabolism*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism*; D012367:RNA, Viral / Q000096:biosynthesis*
chemical_list: D012315:RNA Caps; D012333:RNA, Messenger; D012367:RNA, Viral