RT Journal Article SR Electronic T1 Emerging variants of concern in Saudi Arabian SARS-CoV-2 isolates JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1366 OP 1368 DO 10.15537/smj.2021.42.12.20210630 VO 42 IS 12 A1 Al-Sehemi, Abdullah G. A1 Khan, Muhammad T. A1 Muhammad, Shabbir YR 2021 UL http://smj.org.sa/content/42/12/1366.abstract AB