Stefan Vieths, Esch Robert E, Hoefnagel Marcel, Jacobsen Lars, Lees Bev, Lopes Sandra
Paul-Ehrlich-Institut, Federal Institute for Vaccines and Biomedicines, Langen, Germany.
Arb Paul Ehrlich Inst Bundesinstitut Impfstoffe Biomed Arzneim Langen Hess. 2009;96:26-36.