[1] Connecticut Childrens, Div Cardiol, 282 Washington St, Hartford, CT 06106 USA
[2] Connecticut Childrens, Dept Res, 282 Washington St, Hartford, CT 06106 USA
[3] Univ Connecticut, Sch Med, Dept Pediat, 263 Farmington Ave, Farmington, CT 06030 USA
[4] Univ Connecticut, Dept Human Dev & Family Studies, 348 Mansfield Rd,U-1058, Storrs, CT 06269 USA
[5] Boston Childrens Hosp, Div Pulm Med, 300 Longwood Ave, Boston, MA 02115 USA
[6] Florida State Univ, Family & Child Sci, 207 Sandels Bldg, Tallahassee, FL 32306 USA
[7] LEGO Fdn, Hojmarksvej 8, DK-7190 Billund, Denmark