Influenza viral mRNA contains internal N6-methyladenosine and 5'-terminal 7-methylguanosine in cap structures

R M Krug, M A Morgan, A J Shatkin
1976 Journal of Virology  
doi:10.1128/jvi.20.1.45-53.1976 fatcat:55j2m5xgybhldbpvcvzdtjuu6a