[1] Rhein Westfal TH Aachen, Inst Human Genet, Fac Med, Aachen, Germany
[2] Univ Hosp Essen, Inst Human Genet, Essen, Germany
[3] Med Univ Graz, Inst Human Genet, Graz, Austria
[4] Semmelweis Univ, Dept Pediat 2, Budapest, Hungary
[5] Vilnius Univ, Fac Med, Dept Human & Med Genet, Inst Biomed Sci, Vilnius, Lithuania