Academic article

• Stine Ibsen; Tim Lindskou; Erik Zakariassen et al. (2026). Differences in emergency ambulance use between older and younger individuals in Denmark: a nationwide register-based study. (external link)
• Tine Almenning Flaa; Erik Zakariassen; Bjørn Bjorvatn et al. (2026). Subjective and objective sleep in relation to the work context, profession, age, and workload among helicopter emergency medical service (HEMS) workers. (external link)
• Nathalie Sandal; Ingrid Hjulstad Johansen; Magnus Hjortdahl et al. (2026). Video-supported telephone triage in emergency primary healthcare: an observational study from Norway. (external link)
• Siri-Linn Schmidt Fotland; Arngeir Berge; Erik Zakariassen et al. (2026). Impact of a Prototype Combining Recommender Functionality With Structured Documentation on Operator Performance in Calls to Medical Communication Centers: Quasi-Experimental Feasibility Study. (external link)
• Erik Zakariassen; Steinar Hunskaar (2025). Implementation of remote units in two large out-of-hours emergency primary care districts in Norway. (external link)
• Trude Østerbø; Gro Hovland; Siri Ytrehus et al. (2025). Experiences of patients with complex needs at municipal emergency outpost satellites. (external link)
• Morten Breinholt Søvsø; Janus Laust Thomsen; Erika Frischknecht Christensen et al. (2025). Reorganization of the Danish out-of-hours primary care–a descriptive study. (external link)
• Kristian Myklevoll; Erik Zakariassen; Tone Morken et al. (2024). Primary care doctors in acute call-outs to severe trauma incidents in Norway – variations by rural-urban settings and time factors. (external link)
• Monika Kvernenes; Erik Zakariassen; Une Elisabeth Stømer et al. (2024). Fit for purpose? Evaluating multiple-choice question quality in E-learning for emergency primary healthcare. (external link)
• Siri-Linn Schmidt Fotland; Vivian Midtbø; Jorunn Vik et al. (2024). Factors affecting communication during telephone triage in medical call centres: a mixed methods systematic review. (external link)
• Kristian Myklevoll; Erik Zakariassen; Tone Morken et al. (2023). Primary care doctors in acute call-outs to severe trauma incidents in Norway–associations with factors related to patients and doctors. (external link)
• Gro Hovland; Anne-Grethe Halding; Dagrun Kyrkjebø et al. (2023). Eit viktig kompetanseløft for heile den kommunale helse- og omsorgstenesta Kommunale helse- og omsorgsleiarar sine erfaringar frå deltaking i eit legevaktprosjekt. (external link)
• Sergei Medvedev; Ebbe Hvidegård Hartz; Daniel Walter Schmid et al. (2022). Influence of glaciations on North Sea petroleum systems. (external link)
• Olav Fjære; Gry Elise Amundsen Albrektsen; Anette Fosse et al. (2022). Gjennomføring av akuttmedisinsk samtrening i seks kommuner. (external link)
• Dag Ståle Nystøyl; Øyvind Østerås; Steinar Hunskaar et al. (2022). Acute medical missions by helicopter medical service (HEMS) to municipalities with different approach for primary care physicians. (external link)
• Tine Almenning Flaa; Bjørn Bjorvatn; Ståle Pallesen et al. (2022). Sleep and Sleepiness Measured by Diaries and Actigraphy among Norwegian and Austrian Helicopter Emergency Medical Service (HEMS) Pilots. (external link)
• Henrik Hauståker; Øyvind Østerås; Dag Ståle Nystøyl et al. (2021). General practitioners not available - out-of-hospital emergency patients handled by anaesthesiologist in a large Norwegian municipality. (external link)
• Dag Ståle Nystøyl; Jo Røislien; Øyvind Østerås et al. (2020). Helicopter emergency medical service (HEMS) activity after increased distance to out-of-hours services: an observational study from Norway. (external link)
• Tine Almenning Flaa; Bjørn Bjorvatn; Ståle Pallesen et al. (2020). Subjective and objective sleep among air ambulance personnel. (external link)
• Erik Zakariassen; Siri Waage; Anette Harris et al. (2019). Causes and management of sleepiness among pilots in a Norwegian and an Austrian air ambulance service—a comparative study. (external link)
• Maren Ranhoff Hov; Jo Røislien; Thomas Werner Lindner et al. (2019). Stroke severity quantification by critical care physicians in a mobile stroke unit. (external link)
• Erik Zakariassen; Øyvind Østerås; Dag Ståle Nystøyl et al. (2019). Loss of life years due to unavailable helicopter emergency medical service: a single base study from a rural area of Norway. (external link)
• Tine Almenning Flaa; Anette Harris; Bjørn Bjorvatn et al. (2019). Sleepiness among personnel in the Norwegian Air Ambulance Service. (external link)
• Eirin Nybø Ellensen; Halvor Næss; Torben Wisborg et al. (2018). Stroke identification by criteria based dispatch - a register based study. (external link)
• Magnus Hjortdahl; Erik Zakariassen; Peder Andreas Halvorsen (2018). Self reported involvement in emergency medicine among GPs in Norway. (external link)
• Dag Ståle Nystøyl; Steinar Hunskaar; Hans Johan Breidablik et al. (2018). Treatment, transport, and primary care involvement when helicopter emergency medical services are inaccessible: a retrospective study. (external link)
• Jo Røislien; Pieter L. van den Berg; Thomas Werner Lindner et al. (2018). Comparing population and incident data for optimal air ambulance base locations in Norway. (external link)
• Jo Røislien; Pieter van den Berg; Thomas Werner Lindner et al. (2017). Exploring optimal air ambulance base locations in Norway using advanced mathematical modelling. (external link)
• Maren Ranhoff Hov; Erik Zakariassen; Thomas Werner Lindner et al. (2017). Interpretation of brain CT scans in the field by critical care physicians in a mobile stroke unit. (external link)
• Erik Zakariassen; Steinar Hunskaar (2016). Potential cardiac arrest – An observational study of pre-hospital medical response. (external link)
• Eirin Nybø Ellensen; Torben Wisborg; Steinar Hunskaar et al. (2016). Dispatch guideline adherence and response interval-a study of emergency medical calls in Norway. (external link)
• Helle Marie Brennvall; Helene Hauken; Steinar Hunskaar et al. (2015). Legevaktlegers avgjørelse om utrykning i akuttsituasjoner. (external link)
• Maren Ranhoff Hov; Terje Nome; Erik Zakariassen et al. (2015). Assessment of acute stroke cerebral CT examinations by anaesthesiologists. (external link)
• Erik Zakariassen; Oddvar Uleberg; Jo Røislien (2015). Helicopter emergency medical services response times in Norway: Do they matter?. (external link)
• Robert Anders Burman; Erik Zakariassen; Steinar Hunskaar (2014). Management of chest pain: A prospective study from Norwegian out-of-hours primary care. (external link)
• Robert Anders Burman; Erik Zakariassen; Steinar Hunskaar (2014). Chest pain out-of-hours - An interview study of primary care physicians' diagnostic approach, tolerance of risk and attitudes to hospital admission. (external link)
• Eirin Nybø Ellensen; Steinar Hunskaar; Torben Wisborg et al. (2014). Variations in contact patterns and dispatch guideline adherence between Norwegian emergency medical communication centres - a cross-sectional study. (external link)
• Magnus Hjortdahl; Erik Zakariassen; Torben Wisborg (2014). The role of general practitioners in the pre hospital setting, as experienced by emergency medicine technicians: a qualitative study. (external link)
• Robert Anders Burman; Erik Zakariassen; Steinar Hunskaar (2011). Acute chest pain - a prospective population based study of contacts to Norwegian emergency medical communication centres. (external link)
• Øyvind Thomassen; Hilde Færevik; Øyvind Østerås et al. (2011). Comparison of three different prehospital wrapping methods for preventing hypothermia - a crossover study in humans. (external link)
• Erik Zakariassen; Steinar Hunskår (2010). Involvement in emergency situations by primary care doctors on-call in Norway - a prospective population-based observational study. (external link)
• Erik Zakariassen; Robert Anders Burman; Steinar Hunskår (2010). The epidemiology of medical emergency contacts outside hospitals in Norway a prospective population based study. (external link)
• Erik Zakariassen; Elisabeth Holm Hansen; Steinar Hunskaar (2009). Incidence of emergency contacts (red responses) to Norwegian emergency primary healthcare services in 2007 a prospective observational study. (external link)
• Elisabeth Holm Hansen; Erik Zakariassen; Steinar Hunskaar (2009). Sentinel monitoring of activity of out-of-hours services in Norway in 2007: an observational study. (external link)
• Oddvar Førland; Erik Zakariassen; Steinar Hunskaar (2009). Samhandling mellom ambulansearbeider og legevaktlege. (external link)
• Oddvar Førland; Erik Zakariassen; Steinar Hunskår (2009). Samhandling mellom ambulansearbeider og legevaktlege. (external link)
• Erik Zakariassen; Steinar Hunskaar (2008). GPs' use of defibrillators and the national radio network in emergency primary healthcare in Norway. (external link)
• Erik Zakariassen; Hogne Sandvik; Steinar Hunskaar (2008). Norwegian regular general practitioners' experiences with out-of-hours emergency situations and procedures. (external link)
• Erik Zakariassen; Steinar Hunskaar (2008). Motivasjon og mestringsfølelse hos brukere av defibrillatorer. (external link)
• Tobias Nieber; Elisabeth Holm-Hansen; Gunnar Tschudi Bondevik et al. (2007). Organisering av legevakt. (external link)
• Erik Zakariassen; Jesper Blinkenberg; Elisabeth Holm-Hansen et al. (2007). Beliggenhet, lokaler og rutiner ved norske legevakter. (external link)
• Hogne Sandvik; Erik Zakariassen; Steinar Hunskaar (2007). Fastlegenes deltakelse i legevakt. (external link)

Conference abstract

• Erik Zakariassen; Oddvar Uleberg (2014). The true coverage and timing of the Norwegian air ambulance service. (external link)

Conference lecture

• Jo Røislien; Pieter van den Berg; Thomas Werner Lindner et al. (2017). From politics to mathematics: Exploring optimal air ambulance locations in Norway.. (external link)
• Jo Røislien; Pieter van den Berg; Thomas Werner Lindner et al. (2017). From politics to mathematics: Exploring optimal air ambulance locations in Norway.. (external link)
• Robert Anders Burman; Erik Zakariassen; Steinar Hunskaar (2010). Acute chest pain - A prospective population based study of contacts to Norwegian emergency medical communication centres. (external link)

Doctoral thesis (PhD)

• Eirin Nybø Ellensen; Erik Zakariassen (2017). Norwegian Index for Emergency Medical Assistance. Studies on the Use and Precision of the Emergency Medical Dispatch Guidelines in Norway. (external link)
• Erik Zakariassen (2010). Red response. Studies on the role of primary care doctors in out-of-hospital emergency medicine. (external link)

Lecture

• Erik Zakariassen; Oddvar Uleberg (2013). The true coverage and timing of the Norwegian nationwide air ambulance service. (external link)

Letter to the editor

• Astrid Karina V. Harring; Jesper Blinkenberg; Guttorm Brattebø et al. (2023). The MeSH heading "Call Center" is due for an update: Why we recommend the more precise heading "Emergency Medical Communication Center". (external link)
• Oddvar Uleberg; Erik Zakariassen (2015). Legehelikopter og responstider. (external link)
• Oddvar Førland; Erik Zakariassen; Steinar Hunskår (2009). O. Førland og medarbeidere svarer:. (external link)

Media feature article

• Erik Zakariassen; Eirin Nybø Ellensen (2012). Blir det sikrere med felles nødnummer?. (external link)

Popular science article

• Erik Zakariassen (2010). Akuttmedisinske henvendelser til AMK-sentraler i Norge - epidemiologi, hvem varsles og hvem rykker ut. (external link)

Report

• Vivian Midtbø; Merete Allertsen; Tone Morken et al. (2026). Legevaktorganisering i Norge. Rapport fra Nasjonalt legevaktregister 2026. Rapport nr. 3-2026.. (external link)

Research report

• Tone Morken; Steinar Hunskaar; Erik Zakariassen et al. (2026). Legevakt – ulike modeller for organisering av de kommunale legevakttjenestene. (external link)
• Erik Zakariassen; Kari Stavdal (2026). Legevaktbilar: Rapport om legevaktbilar ved legevakter i Noreg. (external link)
• Merete Allertsen; Erik Zakariassen; Tone Morken et al. (2025). Organisering av legevaktsentraler i Norge. (external link)
• Merete Allertsen; Erik Zakariassen; Tone Morken et al. (2025). Organisering av legevaktsentraler i Norge. Rapport fra Nasjonalt legevaktregister 2025. (external link)
• Erik Zakariassen (2022). Pilot legevakt: Evalueringsrapport fra Nasjonalt kompetansesenter for legevaktmedisin. (external link)
• Tone Morken; Steinar Hunskaar; Jesper Blinkenberg et al. (2008). Legevaktorganisering i Norge - Rapport fra Nasjonalt legevaktregister 2007. (external link)

See a complete overview of publications in NVA.