The association between calcium amd acetoacetate, 3-hydroxybutyrate, pyruvate and lactate as determined by potentiometry: determination of concentrational complexity constants in watery solutions at physiological conditionsHALLAS, J.Scandinavian journal of clinical & laboratory investigation. 1987, Vol 47, Num 6, pp 581-585, issn 0036-5513Article

Evidence of depression provoked by cardiovascular medication : A prescription sequence symmetry analysisHALLAS, J.Epidemiology (Cambridge, Mass.). 1996, Vol 7, Num 5, pp 478-484, issn 1044-3983Article

Sterno-costo-clavicular hyperostosis: a case report with a review of the literatureHALLAS, J; OLESEN, K. P.Acta radiologica (1987). 1988, Vol 29, Num 5, pp 577-579, issn 0284-1851, 3 p.Article

Drug-induced symptoms of functional dyspepsia and nausea. A symmetry analysis of one million prescriptionsBYTZER, P; HALLAS, J.Alimentary pharmacology & therapeutics. 2000, Vol 14, Num 11, pp 1479-1484, issn 0269-2813Article

Screening for drug related dyspepsia : an analysis of prescription symmetryHALLAS, J; BYTZER, P.European journal of gastroenterology & hepatology. 1998, Vol 10, Num 1, pp 27-32, issn 0954-691XArticle

Individualized drug utilization statistics : analysisng a population's drug use from the perspective of individual usersHALLAS, J; NISSEN, A.European journal of clinical pharmacology. 1994, Vol 47, Num 4, pp 367-372, issn 0031-6970Article

Prescription of antidepressants is increased in Danish patients with polycystic ovary syndrome and is associated with hyperandrogenism. A population-based cohort studyALTINOK, M. L; GLINTBORG, D; DEPONT CHRISTENSEN, R et al.Clinical endocrinology (Oxford. Print). 2014, Vol 80, Num 6, pp 884-889, issn 0300-0664, 6 p.Article

The mephenytoin oxidation polymorphism is partially responsible for the N-demethylation of imipramineSKJELBO, E; BROÊSEN, K; HALLAS, J et al.Clinical pharmacology and therapeutics. 1991, Vol 49, Num 1, pp 18-23, issn 0009-9236, 6 p.Article

Drug related hospital admissions : the role of definitions and intensity of data collection, and the possibility of preventionHALLAS, J; HARVAKD, B; GRAM, L. F et al.Journal of internal medicine. 1990, Vol 228, Num 2, pp 83-90, issn 0954-6820Article

Trends in utilization of antiepileptic drugs in DenmarkTSIROPOULOS, I; GICHANGI, A; ANDERSEN, M et al.Acta neurologica scandinavica. 2006, Vol 113, Num 6, pp 405-411, issn 0001-6314, 7 p.Article

Methods for estimating the occurrence of polypharmacy by means of a prescription databaseBJERRUM, L; ROSHOLM, J. U; HALLAS, J et al.European journal of clinical pharmacology. 1997, Vol 53, Num 1, pp 7-11, issn 0031-6970Article

Drug related admissions to medical wards : a population based surveyHALLAS, J; GRAM, L. F; DAVIDSEN, O et al.British journal of clinical pharmacology. 1992, Vol 33, Num 1, pp 61-68, issn 0306-5251Article

The relationship between paroxetine and the sparteine oxidation polymorphismSINDRUP, S. H; BRØSEN, K; ZUSSMAN, B. D et al.Clinical pharmacology and therapeutics. 1992, Vol 51, Num 3, pp 278-287, issn 0009-9236Article

Drug related admissions to a cardiology department : frequency and avoidabilityHALLAS, J; HAGHFELT, T; GRAM, L. F et al.Acta medica scandinavica. Supplementum. 1990, Vol 228, Num 4, pp 379-384, issn 0365-463XArticle

Prescribing of acid suppressive therapy : interactions between hospital and primary careKRAG, A; TEGLBJERG, L. S; MALCHOW-MØLLER, A et al.Alimentary pharmacology & therapeutics. 2006, Vol 23, Num 12, pp 1713-1718, issn 0269-2813, 6 p.Article

Use of anti-secretory medication: a population-based cohort studyLASSEN, A; HALLAS, J; SCHAFFALITZKY DE MUCKADELL, O. B et al.Alimentary pharmacology & therapeutics. 2004, Vol 20, Num 5, pp 577-583, issn 0269-2813, 7 p.Article

Helicobacter pylori test and eradicate versus prompt endoscopy for management of dyspeptic patients: 6.7 year follow up of a randomised trialLASSEN, A. T; HALLAS, J; SCHAFFALITZKY DE MUCKADELL, O. B et al.Gut. 2004, Vol 53, Num 12, pp 1758-1763, issn 0017-5749, 6 p.Article

Statins and risk of polyneuropathy: A case-control studyGAIST, D; JEPPESEN, U; ANDERSEN, M et al.Neurology. 2002, Vol 58, Num 9, pp 1333-1337, issn 0028-3878, SUP6Article

The waiting time distribution as a graphical approach to epidemiologic measures of drug utilizationHALLAS, J; GAIST, D; BJERRUM, L et al.Epidemiology (Cambridge, Mass.). 1997, Vol 8, Num 6, pp 666-670, issn 1044-3983Article

Nonsteroidal anti-inflammatory drugs and upper gastrointestinal bleeding, identifying high-risk groups by excess risk estimatesHALLAS, J; LAURITSEN, J; VILLADSEN, H. D et al.Scandinavian journal of gastroenterology. 1995, Vol 30, Num 5, pp 438-444, issn 0036-5521Article

Drug-related lllness as a cause of admission to a department of respiratory medicineHALLAS, J; DAVIDSEN, O; GRODUM, E et al.Respiration (Basel). 1992, Vol 59, Num 1, pp 30-34, issn 0025-7931Article

Drug-related admissions to a department of medical gastroenterology : the role of self-medicated and prescribed drugsHALLAS, J; JENSEN, K. B; GRODUM, E et al.Scandinavian journal of gastroenterology. 1991, Vol 26, Num 2, pp 174-180, issn 0036-5521, 7 p.Article

Use of statins and risk of glioma: a nationwide case―control study in DenmarkGAIST, D; ANDERSEN, L; HALLAS, J et al.British journal of cancer. 2013, Vol 108, Num 3, pp 715-720, issn 0007-0920, 6 p.Article

Helicobacter pylor, and risk of ulcer bleeding among users of nonsteroidal anti-inflammatory drugs : A case-control studyAALYKKE, C; LAURITSEN, J. M; HALLAS, J et al.Gastroenterology (New York, NY. 1943). 1999, Vol 116, Num 6, pp 1305-1309, issn 0016-5085Article

Use of sumatriptan in Denmark in 1994-5 : an epidemiological analysis of nationwide prescription dataGAIST, D; ANDERSEN, M; AARUP, A.-L et al.British journal of clinical pharmacology. 1997, Vol 43, Num 4, pp 429-433, issn 0306-5251Article