PT - JOURNAL ARTICLE AU - Simran Mann AU - Michael Afnan TI - Qualitative fit testing AID - 10.7861/clinmed.Let.20.6.2 DP - 2020 Nov 01 TA - Clinical Medicine PG - e278--e279 VI - 20 IP - 6 4099 - http://www.rcpjournals.org/content/20/6/e278.2.short 4100 - http://www.rcpjournals.org/content/20/6/e278.2.full SO - Clin Med2020 Nov 01; 20