A COUPLED EXTERNAL/INTERNAL QUALITY CONTROL PROGRAM FOR CLINICAL LABORATORIES IN THE NETHERLANDSJANSEN RTP; JANSEN AP.1980; CLIN. CHIM. ACTA; ISSN 0009-8981; NLD; DA. 1980; VOL. 107; NO 3; PP. 185-201; BIBL. 8 REF.Article

STANDARDIZATION OF THE ALKALINE PHOSPHATASE DETERMINATION WITH HUMAN PLACENTAL PHOSPHATASE = NORMALISATION DU DOSAGE DE LA PHOSPHATASE ALCALINE AVEC LA PHOSPHATASE PLACENTAIRE HUMAINEHAFKENSCHEID JCM; JANSEN AP.1975; CLIN. CHIM. ACTA; PAYS-BAS; DA. 1975; VOL. 59; NO 1; PP. 63-69; BIBL. 13REF.Article

COLORIMETRIC DETERMINATION OF URINARY OXALATE RECOVERED AS CALCIUM OXALATE. APPLICATION OF A SIMPLE CORRECTION FACTOR FOR INCOMPLETE PRECIPITATION = DOSAGE COLORIMETRIQUE DE L'ACIDE OXALIQUE URINAIRE ISOLE SOUS FORME D'OXALATE DE CALCIUM. APPLICATION D'UN FACTEUR DE CORRECTION SIMPLE POUR PRECIPITATION INCOMPLETEBAADENHUIJSEN H; JANSEN AP.1975; CLIN. CHIM. ACTA; PAYS-BAS; DA. 1975; VOL. 62; NO 2; PP. 315-324; BIBL. 20REFArticle

CONTINUOUS-FLOW DETERMINATION OF SERUM INORGANIC PHOSPHATE WITH A SINGLE REAGENT. THE VANADOMOLYBDATE METHOD RE-EVALUATED.BAADENHUIJSEN H; SEUREN JACOBS HEH; JANSEN AP et al.1977; CLIN. CHEM.; U.S.A.; DA. 1977; VOL. 23; NO 7; PP. 1275-1280; BIBL. 25 REF.Article

AUTOMATED DETERMINATION OF THE ANTITRYPSIN ACTIVITY OF SERUM.HOFFMANN JJML; VAN DEN BROEK WGM; JANSEN AP et al.1976; CLIN. CHIM. ACTA; PAYS-BAS; DA. 1976; VOL. 71; NO 2; PP. 251-259; BIBL. 16 REF.Article

STABILITY OF FROZEN LIQUID CONTROL SERA FOR ASSAY OF CHOLESTEROL IN HIGH-DENSITY LIPOPROTEINDEMACKER PNM; HIJMANS AGM; VAN SOMMEREN ZONDAG DF et al.1982; CLIN. CHEM.; ISSN 0009-9147; USA; DA. 1982; VOL. 28; NO 1; PP. 155-157; BIBL. 8 REF.Article

A STUDY OF THE USE OF POLYETHYLENE GLYCOL IN ESTIMATING CHOLESTEROL IN HIGH-DENSITY LIPOPROTEINDEMACKER PNM; HIJMANS AGM; VOS JANSSEN HE et al.1980; CLIN. CHEM.; ISSN 0009-9147; USA; DA. 1980; VOL. 26; NO 13; PP. 1775-1779; BIBL. 28 REF.Article

MEASUREMENT OF HIGH-DENSITY LIPOPROTEIN CHOLESTEROL IN SERUM: COMPARISON OF SIX ISOLATION METHODS COMBINED WITH ENZYMIC CHOLESTEROL ANALYSISDEMACKER PNM; VOS JANSSEN HE; HIJMANS AGM et al.1980; CLIN. CHEM.; ISSN 0009-9147; USA; DA. 1980; VOL. 26; NO 13; PP. 1780-1786; BIBL. 29 REF.Article

APPLICATION AND COMPARISON OF DIFFERENT CRITERIA USED FOR THE DIAGNOSIS OF TYPE III HYPERLIPROPROTEINEMIADEMACKER PNM; VOS JANSSEN HE; STUYT PMJ et al.1978; CLIN. CHEM.; USA; DA. 1978; VOL. 24; NO 9; PP. 1445-1451; BIBL. 20 REF.Article

QUALITY CONTROL AND THE QUALITY OF COMMERCIAL TEST SERA.JANSEN AP; VAN KAMPEN EJ; MEIJERS CAM et al.1978; CLIN. CHIM. ACTA; PAYS-BAS; DA. 1978; VOL. 84; NO 1-2; PP. 255-258; BIBL. 1 REF.Article