@inbook{c9a5ec229fdf42cf917dd7140429cacb,
title = "Opioid peptide production by the immune system.",
keywords = "Econometric and Statistical Methods: General, Geneeskunde (GENK), Geneeskunde(GENK), Algemeen onderzoek, Other medical specialities",
author = "C.J. Heijnen and A.M.A.A. Kavelaars",
year = "1999",
language = "Undefined/Unknown",
publisher = "Plenum Press",
pages = "209--222",
editor = "M. Schedlowski and U. Tewes",
booktitle = "Psychoneuroimmunology An interdisciplinary introduction.",
}