[1] Emma Childrens Hosp, Acad Med Ctr, Dept Pediat Oncol, Amsterdam, Netherlands
[2] Univ Med Ctr Utrecht, Wilhelmina Childrens Hosp, Dept Pediat Endocrinol, POB 85090, NL-3508 AB Utrecht, Netherlands
[3] Univ Hosp Marburg, Dept Nucl Med, Marburg, Germany
[4] Vanderbilt Univ, Sch Med, Dept Pediat, Nashville, TN USA
[5] Providence St Johns Hlth Ctr, John Wayne Canc Inst, Dept Surg Oncol, Santa Monica, CA USA
[6] Erasmus MC, Dept Med Endocrinol, Rotterdam, Netherlands
[7] Erasmus MC, Rotterdam Thyroid Ctr, Rotterdam, Netherlands
[8] Brigham & Womens Hosp, Dept Med, Thyroid Sect, 75 Francis St, Boston, MA 02115 USA
[9] Harvard Med Sch, Boston, MA USA
[10] Semmelweis Univ, Dept Pediat 2, Budapest, Hungary
[11] AOU Citta Salute & Sci Torino, Dept Oncol, Transit Unit Childhood Canc Survivors, Turin, Italy
[12] Univ Rochester, Med Ctr, James P Wilmot Canc Inst, Dept Radiat Oncol & Pediat, Rochester, NY 14642 USA
[13] Yale Univ, Sch Med, Dept Surg & Pediat, Yale Pediat Thyroid Ctr, New Haven, CT USA
[14] Belarusian Med Acad Postgrad Educ, Dept Endocrinol, Minsk, BELARUS
[15] St Anna Childrens Hosp, Dept Pediat Hematol & Oncol, Vienna, Austria
[16] RWTH Univ Hosp Aachen, Dept Nucl Med, Aachen, Germany
[17] Princess Maxima Ctr Pediat Oncol, Utrecht, Netherlands
[18] Boston Childrens Hosp, Thyroid Program Div Endocrinol, Boston, MA USA
[19] Univ Groningen, Univ Med Ctr Groningen, Dept Endocrinol, Groningen, Netherlands
[20] Univ Halle Wittenberg, Dept Gen Visceral & Vasc Surg, Halle, Salle, Germany
[21] Emma Childrens Hosp, Acad Med Ctr, Dept Pediat Surg Ctr Amsterdam, Amsterdam, Netherlands
[22] Mem Sloan Kettering Canc Ctr, Dept Med, 1275 York Ave, New York, NY 10021 USA
[23] Emma Childrens Hosp, Acad Med Ctr, Dept Radiol, Amsterdam, Netherlands
[24] Univ Florida, Dept Pediat, Shands Childrens Hosp, Gainesville, FL USA
[25] Univ Illinois, Sect Endocrinol Diabet & Metab, Chicago, IL USA
[26] Great North Childrens Hosp, Childrens HSCT Unit, Royal Victoria Infirm, Newcastle Upon Tyne, Tyne & Wear, England
[27] Univ Toronto, Dept Pediat, Div Endocrinol, Toronto, ON, Canada
[28] Univ Florida, Div Hematol Oncol, Dept Pediat, Gainesville, FL 32611 USA
[29] St Jude Childrens Res Hosp, Dept Oncol, 332 N Lauderdale St, Memphis, TN 38105 USA
[30] St Jude Childrens Res Hosp, Dept Epidemiol, 332 N Lauderdale St, Memphis, TN 38105 USA
[31] St Jude Childrens Res Hosp, Dept Canc Control, 332 N Lauderdale St, Memphis, TN 38105 USA
[32] Univ Toronto, Hosp Sick Children, Div Haematol Oncol, Toronto, ON, Canada