Doerr, CH, Gajic, O, Berrios, JC, Caples, S, Abdel, M, Lymp, JF & Hubmayr, RD 2005, , American journal of respiratory and critical care medicine, vol. 171, no. 12, pp. 1371-1377. https://doi.org/10.1164/rccm.200309-1223OC
Gajic, O, Lee, J, Doerr, CH, Berrios, JC, Myers, JL & Hubmayr, RD 2003, , American journal of respiratory and critical care medicine, vol. 167, no. 8, pp. 1057-1063. https://doi.org/10.1164/rccm.200208-889OC