Additional file 2 of Reporting of methods to prepare, pilot and perform data extraction in systematic reviews: analysis of a sample of 152 Cochrane and non-Cochrane reviews
Xrn1 knock out A549 cells were infected with WT A/Puerto Rico/8/1984 (H1N1) ("PR8"), or PA-X deficient PR8-PA(∆X) viruses, or mock infected for 16 hours before RNA extraction. 5’RACE was then performe
