[1] UNIV AMSTERDAM,EC SLATER INST BIOCHEM RES,1018 TV AMSTERDAM,NETHERLANDS
[2] ERASMUS UNIV ROTTERDAM,DEPT ENDOCRINOL & REPROD,ROTTERDAM,NETHERLANDS
[3] MAX PLANCK INST PSYCHIAT,MUNICH,GERMANY
[4] LEIDEN UNIV,CTR BIOPHARMACEUT SCI,LEIDEN,NETHERLANDS