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Reported causes of 105 confirmed and probable nontuberculous mycobacteria (NTM) infections associated with antitumor necrosis factor-α agents, US Food and Drug Administration MedWatch database, 1999–2006. *Other species include Mycobacterium kansasii (n = 3), M. xenopi (n = 3), M. haemophilum (n = 2), and M. mucogenicum (n = 1).
