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Narayanan, Manjith; Owers-Bradley, John; Beardsmore, Caroline S; Mada, Marius; Ball, Iain; Garipov, Ruslan; Panesar, Kuldeep S; Kuehni, Claudia E; Spycher, Ben D; Williams, Sian E; Silverman, Michael (2012). Alveolarization continues during childhood and adolescence: new evidence from helium-3 magnetic resonance. American journal of respiratory and critical care medicine, 185(2), pp. 186-91. New York, N.Y.: American Lung Association 10.1164/rccm.201107-1348OC
