The Virtual Secretary Architecture for Secure Software Agents. - Gunnar Hartvigsen; Svein-Gunnar Johansen; A. Helme; Roy Arild Widding; Johan Gustav Bellika; Wen Cao (PAAM, 1996)

Using User Models in Software Agents: The Virtual Secretary. - Johan Gustav Bellika; Gunnar Hartvigsen; Roy Arild Widding (ICMAS, 1998)

The Virtual Library Secretary - A User Model Based Software Agent. - Johan Gustav Bellika; Gunnar Hartvigsen; Roy Arild Widding (Pers. Ubiquitous Comput., 1998)

Using discharge letters and context representation in information retrieval of medical literature. - Johan Gustav Bellika; Gunnar Hartvigsen; Jan Norum (MIE, 2003)

The Oncological Nurse Assistant: A Web-Based Intelligent Oncological Nurse Advisor. - Johan Gustav Bellika; Gunnar Hartvigsen (MedInfo, 2004)

Using Blood Glucose Data as an Indicator for Epidemic Disease Outbreaks. - Eirik Årsand; Ole Anders Walseth; Niklas Andersson; Ruchith Fernando; Ove Granberg; Johan Gustav Bellika; Gunnar Hartvigsen (MIE, 2005)

Automatic Infection Detection System. - Ove Granberg; Johan Gustav Bellika; Eirik Årsand; Gunnar Hartvigsen (MedInfo, 2007)

Challenges in Telemedicine and eHealth: Lessons Learned from 20 Years with Telemedicine in Tromsø. - Gunnar Hartvigsen; Monika Alise Johansen; Per Hasvold; Johan Gustav Bellika; Eirik Årsand; Eli Arild; Deede Gammon; Sture Pettersen; Steinar Pedersen (MedInfo, 2007)

Propagation of program control: A tool for distributed disease surveillance. - Johan Gustav Bellika; Toralf Hasvold; Gunnar Hartvigsen (Int. J. Medical Informatics, 2007)

Properties of a federated epidemiology query system. - Johan Gustav Bellika; Hoylen Sue; Linda Bird; Andrew Goodchild; Toralf Hasvold; Gunnar Hartvigsen (Int. J. Medical Informatics, 2007)

"Garbage in, garbage out": extracting disease surveillance data from epr systems in primary care. - Monika Alise Johansen; Jeremiah Scholl; Per Hasvold; Gunnar Ellingsen; Johan Gustav Bellika (CSCW, 2008)

Electronic Disease Surveillance for Sensitive Population Groups - The Diabetics Case Study. - Taxiarchis Botsis; Ole K. Hejlesen; Johan Gustav Bellika; Gunnar Hartvigsen (MIE, 2008)

Disease outbreak detection through clique covering on a weighted ICPC-coded graph. - Klaske van Vuurden; Gunnar Hartvigsen; Johan Gustav Bellika (MIE, 2008)

New Directions in Electronic Disease Surveillance: Detection of Infectious Diseases during the Incubation Period. - Taxiarchis Botsis; Johan Gustav Bellika; Gunnar Hartvigsen (eTELEMED, 2009)

Authentication and Encryption in the Snow Disease Surveillance Network. - Johan Gustav Bellika; Lars Ilebrekke; Per Atle Bakkevoll; Håvard D. Johansen; Jeremiah Scholl; Monika Alise Johansen (MIE, 2009)

Threats to Information Security of Real-Time Disease Surveillance Systems. - Eva Henriksen; Monika Alise Johansen; Anders Baardsgaard; Johan Gustav Bellika (MIE, 2009)

Bridging the Gap between Patients' Expectations and General Practitioners' Knowledge through Disease Surveillance. - Monika Alise Johansen; Jan-Are K. Johnsen; Gunnar Hartvigsen; Gunnar Ellingsen; Johan Gustav Bellika (MIE, 2009)

Symptoms from Patients as the Primary Information Source for Real-time Surveillance. - Monika Alise Johansen; Jan-Are Kolset Johnsen; Neema Shrestha; Johan Gustav Bellika (MedInfo, 2010)

Respiration Tracking Using the Wii Remote Game Controller. - J. Guirao Aguilar; Johan Gustav Bellika; Luis Fernández-Luque; Vicente Traver Salcedo 001 (MIE, 2011)

Social Media and Games as Self-management Tools for Children and Adolescents with Type 1 Diabetes Mellitus. - J. Lauritzen; Eirik Årsand; Alexander Horsch; Luis Fernández-Luque; Taridzo Chomutare; Johan Gustav Bellika; Ole K. Hejlesen; Gunnar Hartvigsen (HEALTHINF, 2012)

Standards for reporting randomized controlled trials in medical informatics: a systematic review of CONSORT adherence in RCTs on clinical decision support. - Knut Magne Augestad; Gro Berntsen; K. Lassen; Johan Gustav Bellika; R. Wootton; Rolv-Ole Lindsetmo (J. Am. Medical Informatics Assoc., 2012)

Towards privacy-preserving computing on distributed electronic health record data. - Kassaye Yitbarek Yigzaw; Johan Gustav Bellika; Anders Andersen; Gunnar Hartvigsen; Carlos Fernández-Llatas (Middleware Doctoral Symposium, 2013)

Meta-architecture for the interoperability and knowledge management of archetype-based clinical decision support systems. - Luis Marco-Ruiz; José Alberto Maldonado; Vicente Traver 001; Randi Karlsen; Johan Gustav Bellika (BHI, 2014)

Evaluation of secure multi-party computation for reuse of distributed electronic health data. - Kassaye Yitbarek Yigzaw; Johan Gustav Bellika (BHI, 2014)

A communicable disease prediction benchmarking platform. - Kassaye Yitbarek Yigzaw; Johan Gustav Bellika (BHI, 2014)

Video Conferencing Services in Healthcare: One Communication Platform to Support All. - Andrius Budrionis; Per Hasvold; Gunnar Hartvigsen; Johan Gustav Bellika (MedInfo, 2015)

Semantic Interoperability in Clinical Decision Support Systems: A Systematic Review. - Luis Marco-Ruiz; Johan Gustav Bellika (MedInfo, 2015)

A Communicable Disease Query Engine. - Johan Gustav Bellika; Luis Marco; Rolf Wynn (MIE, 2015)

Privacy-preserving Statistical Query and Processing on Distributed OpenEHR Data. - Meskerem Asfaw Hailemichael; Luis Marco-Ruiz; Johan Gustav Bellika (MIE, 2015)

Internet-based remote consultations - general practitioner experience and attitudes in Norway and Germany. - Timotheus Kampik; Frank Larsen; Johan Gustav Bellika (MIE, 2015)

Multidisciplinary Modelling of Symptoms and Signs with Archetypes and SNOMED-CT for Clinical Decision Support. - Luis Marco-Ruiz; José Alberto Maldonado; Randi Karlsen; Johan Gustav Bellika (MIE, 2015)

What device should be used for telementoring? Randomized controlled trial. - Andrius Budrionis; Gunnar Hartvigsen; Rolv-Ole Lindsetmo; Johan Gustav Bellika (Int. J. Medical Informatics, 2015)

Archetype-based data warehouse environment to enable the reuse of electronic health record data. - Luis Marco-Ruiz; David Moner; José Alberto Maldonado; Nils Kolstrup; Johan Gustav Bellika (Int. J. Medical Informatics, 2015)

Secure and Scalable Statistical Computation of Questionnaire Data in R. - Kassaye Yitbarek Yigzaw; Antonis Michalas; Johan Gustav Bellika (IEEE Access, 2016)

The Learning Healthcare System: Where are we now? A systematic review. - Andrius Budrionis; Johan Gustav Bellika (J. Biomed. Informatics, 2016)

Publication, discovery and interoperability of Clinical Decision Support Systems: A Linked Data approach. - Luis Marco-Ruiz; Carlos Pedrinaci; José Alberto Maldonado; Luca Panziera; Rong Chen; Johan Gustav Bellika (J. Biomed. Informatics, 2016)

Combining multivariate statistics and the think-aloud protocol to assess Human-Computer Interaction barriers in symptom checkers. - Luis Marco-Ruiz; Erlend Bønes; Estela de la Asunción; Elia Gabarron; Juan Carlos Aviles Solis; Eunji Lee; Vicente Traver 001; Keiichi Sato; Johan Gustav Bellika (J. Biomed. Informatics, 2017)

Secure and scalable deduplication of horizontally partitioned health data for privacy-preserving distributed statistical computation. - Kassaye Yitbarek Yigzaw; Antonis Michalas; Johan Gustav Bellika (BMC Medical Informatics Decis. Mak., 2017)

User-Centred Design with a Remote Approach: Experiences from the Chronic Pain Project. - Berglind Fjola Smaradottir; Johan Gustav Bellika; Aina Fredeng; Asbjørn J. Fagerlund (EFMI-STC, 2020)

Healthcare and data privacy requirements for e-health cloud: A qualitative analysis of clinician perspectives. - Taridzo Chomutare; Kassaye Yitbarek Yigzaw; Sílvia Delgado Olabarriaga; Alexandra Makhlysheva; Marcela Tuler de Oliveira; Line Silsand; Dagmar Krefting; Thomas Penzel; Christiaan Hillen; Johan Gustav Bellika (HealthCom, 2020)

Privacy-preserving architecture for providing feedback to clinicians on their clinical performance. - Kassaye Yitbarek Yigzaw; Andrius Budrionis; Luis Marco-Ruiz; Torje Dahle Henriksen; Peder A. Halvorsen; Johan Gustav Bellika (BMC Medical Informatics Decis. Mak., 2020)

How to Retain Participants in User-Centered Design? Towards Recommendations for Minimizing Dropouts. - Asbjørn J. Fagerlund; Berglind Fjola Smaradottir; Elisa Salvi; Aina Fredeng; Johan Gustav Bellika (MedInfo, 2021)

Use of e-Health by Healthcare Professionals vs. non-Healthcare Professionals. - Rolf Wynn; Sunday O. Oyeyemi; Luis Marco-Ruiz; Andrius Budrionis; Kassaye Yitbarek Yigzaw; Johan Gustav Bellika (MIE, 2021)

Benchmarking PySyft Federated Learning Framework on MIMIC-III Dataset. - Andrius Budrionis; Magda Miara; Piotr Miara; Szymon Wilk; Johan Gustav Bellika (IEEE Access, 2021)

The Tromsø Study: Lessons Learnt About Searching for Information About Health and Illness. - Rolf Wynn; Gunnar Ellingsen; Lorena Garcia Fernandez; Vicente Traver 001; Johan Gustav Bellika; Sunday O. Oyeyemi; Elia Gabarron (MIE, 2024)