AU - DEMERS B, MIKE RW TI - RIsks of placing one-way valves in ventilator circuits PT - JOUR DP - 1989 TA - American Journal of Diseases of Children pages = {444}, VI - 143 IP - 4 AID - 10.1001/archpedi.1989.02150160066012 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1989.02150160066012 SO - American Journal of Diseases of Children April 1, 1989 143(4):444