PT - JOURNAL ARTICLE ED - Prince Sultan Military Medical City TI - How well do face masks worn by children block the release of exhaled particles? DP - 2023 May 01 TA - Saudi Medical Journal PG - 523--523 VI - 44 IP - 5 4099 - http://smj.org.sa/content/44/5/523.short 4100 - http://smj.org.sa/content/44/5/523.full SO - Saudi Med J2023 May 01; 44