[1] Intermt Healthcare, Dept Women & Newborns, Salt Lake City, UT USA
[2] McKay Dee Hosp Ctr, Div Neonatol, Ogden, UT USA
[3] Univ Utah, Primary Childrens Med Ctr, Sch Med, Salt Lake City, UT USA
[4] Univ Utah, Sch Med, Dept Pediat, Div Hematol Oncol, Salt Lake City, UT USA
[5] Pediat Clin, Hildale, UT USA
[6] Fdn IRCC Ca Grada Osped Maggiore Policlin, UO Hematol 2, Milan, Italy