Inter-mediating risk factors in the relation between socioeconomic status en 25-year mortality (the Zutphen study)TJ Duijkers, D Kromhout, IP Spruit, G Doornbos31/12/1989Tijdschriftartikel
Effect of iron chelates on luminol chemiluminescence in the presence of xanthine oxidaseEHJM Jansen, RH van den Berg, JJ Bergman31/12/1989Tijdschriftartikel
Comparison between spectrophotometric and chemiluminescence detection in enzyme immunoassays for nortestosteroneEHJM Jansen, JJ Bergman, RH van den Berg, G Zomer31/12/1989Tijdschriftartikel
Cloning and expression in Escherichia coli of Haemophilus influenzae fimbrial genes establishes adherence to oropharyngeal epithelial cellsSM van Ham, FR Mooi, MG Sindhunata, WR Maris, L van Alphen31/12/1989Tijdschriftartikel