Jeffrey V. Ravetch
Theresa and Eugene M. Lang Professor
Department Leonard Wagner Laboratory of Molecular Genetics and Immunology
Rockefeller University
1230 York Avenue, Box 98
New York, NY 10021, USA
Falk Nimmerjahn
Professor for Immunology and Genetics
Chairman of the Institute of Genetics
Head of the Department of Biology
Department of Biology
University of Erlangen-Nuernberg
Erwin-Rommelstr. 3
91058 Erlangen, Germany