Training and Fit Testing of Health Care Personnel for Reusable Elastomeric Half-Mask Respirators Compared With Disposable N95 Respirators - Pompeii, Lisa A; Kraft, Colleen S; Brownsword, Erik A; Lane, Morgan A; Benavides, Elisa; Rios, Janelle; Radonovich, Jr, Lewis J (JAMA : the journal of the American Medical Association, 2020)