[1] BURROUGHS WELLCOME CO, DEPT CLIN STAT, RES TRIANGLE PK, NC USA
[2] UNIV N CAROLINA, DEPT PEDIAT, CHAPEL HILL, NC USA
[3] BURROUGHS WELLCOME CO, DIV CLIN RES, RES TRIANGLE PK, NC USA
[4] LOUISIANA STATE UNIV, MED CTR, DEPT PEDIAT, SHREVEPORT, LA USA
[5] UNIV ALABAMA, MED CTR, DEPT PEDIAT, BIRMINGHAM, AL 35294 USA
[6] EMORY UNIV, SCH MED, DEPT PEDIAT, ATLANTA, GA USA
[7] UNIV S FLORIDA, DEPT PEDIAT, TAMPA, FL USA
[8] UNIV HAWAII, DEPT PEDIAT, HONOLULU, HI USA
[9] E CAROLINA UNIV, DEPT PEDIAT, GREENVILLE, NC USA
[10] ALASKA NEONATAL ASSOC, ANCHORAGE, AK USA
[11] BUTTERWORTH HOSP, GRAND RAPIDS, MI USA
[12] UNIV LOUISVILLE, LOUISVILLE, KY USA
[13] GEORGETOWN UNIV HOSP, WASHINGTON, DC USA
[14] KAPIOLANI MED CTR WOMEN & CHILDREN, HONOLULU, HI USA
[15] TRIPLER ARMY MED CTR, HONOLULU, HI USA
[16] CEDARS SINAI MED CTR, LOS ANGELES, CA USA
[17] UNIV COLORADO, HLTH SCI CTR, DENVER, CO USA