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This paper analyzes the role of various types of agglomeration externalities on the survival rate of entrepreneurial firms. In particular, we trace the population cohort of newly-established and self-employed Swedish firms in the Knowledge-Intensive Business Service sector in 1997 up to 2012 and investigate the role of Marshallian and Jacobian externalities on the survival of these firms. We find
Antihaemophilic-factor-A-antibodies, which had spontaneously arisen in 2 patients, were used to develop an immunoradiometric method for measurement of antihaemophilic factor A antigen (VIII:CAg). 13 patients with severe haemophilia A had VIII: CAg below the limit of detection (0.01 U/ml). Patients with moderate and mild haemophilia A either had VIII:CAg roughly equal to factor VIII clotting activi
A semistructured personal interview with 29 female carriers of hemophilia and 23 of their spouses was performed at a median of 3 1/2 years after the first chorionic villus sampling (CVS) and gene analysis. Carriers with a hemophilic father or brother, had high sense of coherence (SOC) scores, and thus would be expected to have good ability to handle the stress of prenatal diagnosis (PD). Prenatal
The mutations of 76 haemophilia B patients representing the whole population registered with the Malmö haemophilia centre (42) and referrals from the UK, were characterised. RFLP haplotype analysis of the defective genes indicated that 51 single base pair substitutions were definitely of independent origin and 27 of these were CpG----TpG or CpA transitions. This represents a 38-fold excess over ot
Background: The national incidence of adverse events (AEs) in Swedish orthopedic care has never been described. A new national database has made it possible to describe incidence, nature, preventability and consequences of AEs in Swedish orthopedic care. Methods: We used national data from a structured two-stage record review with a Swedish modification of the Global Trigger Tool. The sample was 4
Rapid identification of gene defects allows definite carrier and prenatal diagnosis in virtually every family with haemophilia B. We report a study of the family of an isolated patient. Analysis of all the essential regions of the patient's factor IX gene (promoter, exons, transcript processing signals) revealed two mutations: one C----T transition at residue 17762 and another at residue 30890. Th
The case of a female with moderate haemophilia B is reported. She is the only affected member of her family, and factor IX RFLP analysis shows her to have inherited no maternal markers for polymorphisms located in the first intron and 8 Kb 3' of the polyadenylation signal (DdeI and HhaI, respectively). This clearly indicates a deletion involving at least the last 7 exons of the factor IX gene. Her
The aim of this study was to ascertain how many of the sporadic cases of severe Haemophilia A in Sweden are due to recent mutation, and establish its origin. DNA analysis was performed in 18 randomly selected families with a sporadic case of severe haemophilia A. Restriction fragment length polymorphism (RFLP) patterns were investigated, two intragenic (Bc1 I, Xba I/Kpn I) and two extragenic (DX 1
The distribution of 1.198 Malmö alleles was examined in 822 men from 16 indigenous populations and 188 women from 7 of the ethnic groups. Subjects were from several European countries, the Mediterranean, East Asia, and the USA (Anglo- and African-Americans). The frequencies of the rarer (Malmö B) allele were approximately equal across Europe, the highest frequencies (0.36) being in the French and
Gene profiling has revealed that malignant gliomas can be divided into four distinct molecular subtypes, where tumors with a mesenchymal gene expression are correlated with short survival. The present investigation was undertaken to clarify whether human malignant gliomas contain endogenous mesenchymal stromal cells (MSC), fulfilling consensus criteria defined by The International Society for Cell
Carrier and prenatal diagnosis based on the identification of the gene defect (direct diagnosis) increases the proportion of haemophilia B families that can be offered precise genetic counselling from the 50-60% attainable by DNA markers, to 100%, and they also provide information on the molecular biology of the disease. We propose that in order to maximize the practical and scientific benefits of
Anaphylaxis/anaphylactoid reactions have recently been reported after few treatments with factor IX concentrates in patients with haemophilia B at the same time as inhibitors to factor IX were demonstrated. In some of these cases nephrotic syndrome has appeared during immune tolerance induction (ITI) with high doses of factor IX concentrates. Gene deletions seem to be associated with a high risk o
Cartier identification and antenatal diagnosis were performed in 2 sisters by electrophoretic separation of the normal and abnormal bands obtained after amplification of a fragment of exon h in the factor IX gene. The mutation in the family had been characterised as an 8-base pair (bp) deletion in exon h. By amplification of a 326 bp fragment containing the site of deletion, the shorter 318 bp ban
With a view to the characterisation of presenting symptoms, a survey was made of 140 boys diagnosed as having haemophilia A or B, severe or moderate form, in Sweden during the years 1960-1987. Mean age at diagnosis was nine months for the severe cases and 22 months for the moderate cases. Although the heredity was known in 59/140 cases, 35 had had bleeding episodes before diagnosis had been establ
A 39‐year‐old patient, suffering from severe haemophilia B and antibodies against factor IX, has twice been treated with extracorporeal protein A‐Sepharose adsorption followed by conventional substitution therapy in combination with immunosuppression (cyclophos‐phamide). On both occasions, separated by a 2‐year interval, the same procedure was followed except that, on the second, administration of
