[1] Univ Rouen, European Inst Peptide Res, Lab Cellular & Mol Neuroendocrinol, IFRMP 23,INSERM U413,UA CNRS, F-76821 Mt St Aignan, France
[2] Inst Zool, Neuroendocrinol Lab, B-3000 Louvain, Belgium
[3] Museum Nat Hist, CNRS URA 90, Lab Gen & Comparat Physiol, F-75005 Paris, France