[1] Univ Pittsburgh, UPMC Montefiore, Acute Lung Injury Ctr Excellence, Dept Med, NW 628, Pittsburgh, PA 15213 USA
[2] Univ Pittsburgh, Dept Cell Biol & Physiol, Pittsburgh, PA 15213 USA
[3] Univ Pittsburgh, Dept Bioengn, Pittsburgh, PA 15213 USA
[4] Vet Affairs Pittsburgh Healthcare Syst, Med Specialty Serv Line, Pittsburgh, PA 15240 USA