Airborne bacteria in Earth’s lower stratosphere resemble taxa detected in the troposphere: results from a new NASA aircraft bioaerosol collector (ABC) - David J. Smith; Ravichandar, Jayamary; Jain, Sunit; Griffin, Dale; Yu, Hongbin; Tan, Qian; Thissen, James; Lusby, Terry; Nicoll, Patrick; Shedler, Sarah; Martinez, P.; Osorio, Alejandro; et al. (Frontiers in Microbiology, 2019)