[1] Univ Santiago de Compostela, Dept Med, Div Endocrine, Santiago De Compostela, Spain
[2] Northwestern Univ, Div Endocrinol, Chicago, IL 60611 USA
[3] Univ Iowa, Dept Internal Med, Iowa City, IA 52242 USA
[4] Univ Ziekenhuis, Dept Endocrinol, Antwerp, Belgium
[5] Univ Calif Los Angeles, Cedars Sinai Med Ctr, Dept Med, Los Angeles, CA 90048 USA
[6] Univ Sao Paulo, Neuroendocrine Unit, Sao Paulo, Brazil
[7] Univ Mediterranee, Hop Timone, Dept Endocrinol, Marseille, France
[8] Univ Naples Federico II, Dept Neurol Sci, Naples, Italy
[9] Univ Naples Federico II, Dept Endocrinol, Naples, Italy
[10] Univ Erlangen Nurnberg, Dept Neurosurg, Erlangen, Germany
[11] T Alvarez Hosp, Endocrinol Unit, Buenos Aires, DF, Argentina
[12] Tel Aviv Univ, Chaim Sheba Med Ctr, Dept Neurosurg, IL-69978 Tel Aviv, Israel
[13] Hop Necker Enfants Malad, INSERM, U458, Paris, France
[14] NYU, Dept Med, New York, NY 10016 USA
[15] Univ Virginia, Dept Neurosurg, Charlottesville, VA USA
[16] Charles Univ, Dept Med, Prague, Czech Republic
[17] Univ Wales Coll Cardiff, Dept Med, Cardiff CF1 3NS, S Glam, Wales
[18] Portuguese Canc Inst, Dept Endocrinol, Lisbon, Portugal
[19] Churchill Hosp, Dept Endocrinol, Oxford OX3 7LJ, England
[20] Univ Brescia, Dept Internal Med, Brescia, Italy