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Biomedical Chromatography : BMC|January 1, 1987
Routine clinical determination of carotene, vitamin E, vitamin A, 25-hydroxy vitamin D3 and trans-vitamin K1 in human serum by straight phase HPLCP M Van Haard, R Engel, T PostmaClinical Chemistry|January 1, 1982
Two serum pancreatic isoamylase determinations comparedT Rammeloo, P M van Haard, M H BeunisClinica Chimica Acta; International Journal of Clinical Chemistry|August 15, 1985
Vitamin K1 in the newbornA L Pietersma-de Bruyn, P M van HaardClinica Chimica Acta; International Journal of Clinical Chemistry|July 30, 1986
Assay of urinary 5-hydroxyindole-3-acetic acid: two methodologies comparedJ D Baars, P M van Haard, A J LombartsBiomedical Chromatography : BMC|January 1, 1987
Direct concurrent measurement of urinary vanillylmandelic acid, 5-hydroxyindoleacetic acid and homovanillic acid by HPLC. Three methodologies comparedP M van Haard, J P Wielders, J B WikkerinkClinica Chimica Acta; International Journal of Clinical Chemistry|June 30, 1986
Quantitation of trans-vitamin K1 in small serum samples by off-line multidimensional liquid chromatographyP M van Haard, R Engel, A L Pietersma-de BruynBiochimica Et Biophysica Acta|August 1, 1980
Pyrolysis mass spectra, sulfhydryl and tryptophan content of the embryonic nuclei from adult human normal and nuclear-cataractous lensesP M van Haard, H J Hoenders, J Wollensak, et al.Journal of Pediatric Surgery|February 24, 1998
Introduction of enteral feeding in neonates on extracorporeal membrane oxygenation after evaluation of intestinal permeability changesM Piena, M J Albers, P M Van Haard, et al.British Journal of Clinical Pharmacology|January 1, 1992
Gastrointestinal blood loss after non-steroidal anti-inflammatory drugs. Measurement by selective determination of faecal porphyrinsA Cohen, J K Boeijinga, P M van Haard, et al.Pageof 2