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(A) Mean PaO2 values of preterm lambs treated with Poractant alfa at doses of 100 mg/kg (gray circles) and 200 mg/kg (black circles) or with Bovactant at doses of 50 mg/kg (white triangles) and 100 mg/kg (gray triangles). (B) Post-mortem gas volumes of preterm lambs treated with Poractant alfa or with Bovactant. Mean ± SEM is shown. *P vs. Bovactant 50 mg/kg <0.05; #P vs. Bovactant 100 mg/kg <0.05.
