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Alsofi L, Al Harbi M, Al-Habib M, Stauber M, Balto K.Alsofi L, et al.J Int Soc Prev Community Dent. 2021 Jul 30;11(4):457-462. doi: 10.4103/jispcd.JISPCD_430_20. eCollection 2021 Jul-Aug.J Int Soc Prev Community Dent. 2021.PMID: 34430508Free PMC article.