WAGNER, C.; JOHN, A.; EGAN, A.; BRADLEY, B.; RAMIREZ, C.; AHNOOD, E.; CHAVEZ, M.; AICKARETH, G.; GRISWOLD, J. Hospital-acquired pneumonia - no apparent seasonal variation: a single institution study. The Southwest Respiratory and Critical Care Chronicles, v. 10, n. 42, p. 1-6, 25 Jan. 2022.