Author

Ivar Ørstavik

Observed names: I Orstavik, I Örstavik, I Ørstavik, I ørstavik, I. ORSTAVIK, I. Orstavik, I. ÖRSTAVIK, I. Örstavik, I. ØRSTAVIK, I. Ørstavik, I. øRSTAVIK, I. ørstavik, IVAR ØRSTAVIK, IVAR ØRstavik, Ivar Örstavik, Ivar ørstavik

Observed institutions: Oslo University Hospital, Norwegian Institute of Public Health, University of Oslo, University of Bergen

OpenAlex ID: A5084617356

Respiratory virus infections and aeroallergens in acute bronchial asthma.

1984 · K H Carlsen, I Orstavik, et al. · Archives of Disease in Childhood · 132

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An Epidemic of Rotavirus-Associated Gastroenteritis in a Nursing Home for the Elderly

1980 · Jens Halvorsrud, Ivar Örstavik · Scandinavian Journal of Infectious Diseases · 95

Nebulised beclomethasone dipropionate in recurrent obstructive episodes after acute bronchiolitis.

1988 · K H Carlsen, J Leegaard, et al. · Archives of Disease in Childhood · 93

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Human papillomavirus and cervical intraepithelial neoplasia grade II‐III: A population‐based case‐control study

1995 · Anne O. Olsen, Kirsti Gjøen, et al. · International Journal of Cancer · 73

Sensitivity of Western Blotting (compared With Elisa and Immunofluorescence) During Seroconversion After Htlv-iii Infection

1986 · JanC. Ulstrup, Kjell Skaug, et al. · The Lancet · 60

Respiratory Syncytial Virus Infections in Oslo 1972–1978

1980 · I. ØRSTAVIK, K.‐H. CARLSEN, et al. · Acta Paediatrica · 53

Severe Illnesses Due to Adenovirus Type 7 in Children

1969 · J. STEEN‐JOHNSEN, I. ÖRSTAVIK, et al. · Acta Paediatrica · 44

VIRAL INFECTIONS OF THE RESPIRATORY TRACT IN HOSPITALIZED CHILDREN A Study from Oslo during a 90 Months’Period

1983 · K.‐H. CARLSEN, I. ØRSTAVIK, et al. · Acta Paediatrica · 42

A simple test for penicillinase production in Staphylococcus aureus.

1971 · I Orstavik, K Odegaard · PubMed · 38

Neutralizing Activity in Human Milk Fractions against Respiratory Syncytial Virus

1986 · A. LÆGREID, A.‐B. KOLSTø OTNÆSS, et al. · Acta Paediatrica · 37

Viral diagnoses using the rapid immunofluorescence technique and epidemiological implications of acute respiratory infections among children in different European countries.

1984 · I Orstavik, M Grandien, et al. · PubMed · 37

Application of the Passive Haemolysis Test for the Determination of Rubella Virus Antibodies

1975 · K. SKAUG, I. ØRSTAVIK, et al. · Acta Pathologica Microbiologica Scandinavica Section B Microbiology · 37

A reovirus-like agent (rotavirus) in gastroenteritis of children. Virus detection and serological studies.

1976 · I Orstavik, K J Figenschau, et al. · PubMed · 33

Rotavirus–Associated Gastroenteritis in two Adults Probably Caused by Virus Reinfection

1976 · Ivar Ørstavik, Kari Wold Haug, et al. · Scandinavian Journal of Infectious Diseases · 32

Acute bronchiolitis in infancy. The relationship to later recurrent obstructive airways disease.

1987 · K H Carlsen, S Larsen, et al. · PubMed · 31

Virus-specific IgM Antibodies in Acute Gastroenteritis due to a Reovirus-Like Agent (Rotavirus)

1976 · Ivar Ørstavik, Kari Wold Haug · Scandinavian Journal of Infectious Diseases · 30

Rotavirus Infections in Families: A Clinical and Virological Study

1978 · Kari Wold Haug, Ivar Ørstavik, et al. · Scandinavian Journal of Infectious Diseases · 28

A population-based case-control study of human papillomavirus-type-16 seropositivity and incident high-grade dysplasia of the uterine cervix

1996 · Anne O. Olsen, Joakim Dillner, et al. · International Journal of Cancer · 27

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Herpes simplex virus and human papillomavirus in a population‐based case‐control study of cervical intraepithelial neoplasia grade II‐III

1998 · ANNE O. OLSEN, IVAR ØRSTAVIK, et al. · Apmis · 25

Bronchopulmonary obstruction in children with respiratory virus infections.

1984 · K H Carlsen, I Orstavik · PubMed · 24

THE EFFECT OF HUMAN MILK FRACTIONS ON ROTAVIRUS IN RELATION TO THE SECRETORY IgA CONTENT

1980 · ANNE‐BRIT OTNÆSS, IVAR ØRSTAVIK · Acta Pathologica Microbiologica Scandinavica Section C Immunology · 24

Legionnaires‘ Disease Combined With Erythema Multiforme in a 3‐year‐old Boy

1981 · R. ANDERSEN, T. BERGAN, et al. · Acta Paediatrica · 23

Adenovirus keratoconjunctivitis.

1977 · N Anmarkrud, I Orstavik · British Journal of Ophthalmology · 23

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Prevalence of human papillomavirus in cervical scrapes, as analyzed by PCR, in a population-based sample of women with and without cervical dysplasia

1996 · KIRSTI GJØEN, ANNE O. OLSEN, et al. · Apmis · 22

THE DIAGNOSTIC VALUE OF DETERMINATION OF IgM ANTIBODIES AGAINST MYCOPLASMA PNEUMONIAE BY THE INDIRECT IMMUNOFLUORESCENT ANTIBODY TEST

1976 · Kjell Skaug, Jan Eng, et al. · Acta Pathologica Microbiologica Scandinavica Section B Microbiology · 22

Works count: 79

Citation count: 1,341

H-index: 23

I10-index: 33