[1] Cincinnati Childrens Hosp Med Ctr, Dept Perinatal & Pulm Biol, Perinatal Inst, Cincinnati, OH 45229 USA
[2] Cincinnati Childrens Hosp Med Ctr, Sect Neonatol, Cincinnati, OH 45229 USA
[3] Univ Cincinnati, Dept Elect Engn & Comp Syst, Cincinnati, OH USA
[4] Cincinnati Childrens Hosp Med Ctr, Div Biomed Informat, Cincinnati, OH 45229 USA