| Association of Rickettsia helvetica with chronic perimyocarditis in sudden cardiac death K Nilsson, O Lindquist, C Påhlson The Lancet 354 (9185), 1169-1173, 1999 | 316 | 1999 |
| Rickettsia helvetica in patient with meningitis, Sweden, 2006 K Nilsson, K Elfving, C Påhlson Emerging infectious diseases 16 (3), 490, 2010 | 183 | 2010 |
| Dissemination of spotted fever rickettsia agents in Europe by migrating birds K Elfving, B Olsen, S Bergström, J Waldenström, Å Lundkvist, A Sjöstedt, ... PLoS One 5 (1), e8572, 2010 | 165 | 2010 |
| Presence of Rickettsia helvetica in Granulomatous Tissue from Patients with Sarcoidosis K Nilsson, C Påhlson, A Lukinius, L Eriksson, L Nilsson, O Lindquist The Journal of infectious diseases 185 (8), 1128-1138, 2002 | 138 | 2002 |
| Rickettsia helvetica in Ixodes ricinus Ticks in Sweden K Nilsson, O Lindquist, AJ Liu, TGT Jaenson, G Friman, C Påhlson Journal of clinical microbiology 37 (2), 400-403, 1999 | 137 | 1999 |
| Spotted fever Rickettsia species in Hyalomma and Ixodes ticks infesting migratory birds in the European Mediterranean area K Wallménius, C Barboutis, T Fransson, TGT Jaenson, PE Lindgren, ... Parasites & vectors 7, 1-20, 2014 | 98 | 2014 |
| Septicaemia with Rickettsia helvetica in a patient with acute febrile illness, rash and myasthenia K Nilsson Journal of infection 58 (1), 79-82, 2009 | 91 | 2009 |
| Detection and prevalence of Anaplasma phagocytophilum and Rickettsia helvetica in Ixodes ricinus ticks in seven study areas in Sweden K Severinsson, TG Jaenson, J Pettersson, K Falk, K Nilsson Parasites & vectors 3, 1-7, 2010 | 82 | 2010 |
| Characterization of a spotted fever group Rickettsia from Ixodes ricinus ticks in Sweden K Nilsson, TG Jaenson, I Uhnoo, O Lindquist, B Pettersson, M Uhlén, ... Journal of Clinical Microbiology 35 (1), 243-247, 1997 | 74 | 1997 |
| Prevalence of Rickettsia spp., Anaplasma phagocytophilum and Coxiella burnetii in adult Ixodes ricinus ticks from 29 study areas in central and southern Sweden Wallménius K, Pettersson JHO, Jaenson TGT, Nilsson Tick Tickborne Dis, 2011 | 58* | 2011 |
| Rickettsia felis infection in Sweden: Report of two cases with subacute meningitis and review of the literature Lindblom A, Severinsson K, Nilsson K Scand J inf Dis, 2010 | 55 | 2010 |
| Bell's palsy and sudden deafness associated with Rickettsia spp. infection in Sweden. A retrospective and prospective serological survey including PCR findings K Nilsson, K Wallmenius, S Hartwig, T Norlander, C Påhlson European Journal of Neurology 21 (2), 206-214, 2014 | 51 | 2014 |
| Randomised, controlled trial of low-dose heparin for prevention of fatal pulmonary embolism in patients with infectious diseases B Gårdlund, Heparin Prophylaxis Study Group The Lancet 347 (9012), 1357-1361, 1996 | 49 | 1996 |
| Co-infection with Rickettsia helvetica and herpes simplex virus 2 in a young woman with meningoencephalitis Wallménius K, Påhlson C, Nilsson K Case Report Inf Dis, 2011 | 43 | 2011 |
| Serological reactivity to Anaplasma phagocytophilum in neoehrlichiosis patients L Wass, A Grankvist, M Mattsson, H Gustafsson, K Krogfelt, B Olsen, ... European Journal of Clinical Microbiology & Infectious Diseases 37, 1673-1678, 2018 | 40 | 2018 |
| Evidence of Rickettsia spp. infection in Sweden: a clinical, ultrastructural and serological study K Nilsson, A Lukinius, C Påhlson, C Moron, NA Hajem, B Olsson, ... Apmis 113 (2), 126-134, 2005 | 40 | 2005 |
| Demonstration of intracellular microorganisms (rickettisa spp, Chlamydia pneumoniae, Bartonella spp) in pathological human aortic valves by PCR Nilsson K, Liu AJ, Påhlson C, Lindquist O J Infection, 2005 | 38 | 2005 |
| Vasculitis due to Candidatus Neoehrlichia mikurensis: A Cohort Study of 40 Swedish Patients L Höper, E Skoog, M Stenson, A Grankvist, L Wass, B Olsen, K Nilsson, ... Clinical Infectious Diseases 73 (7), e2372-e2378, 2021 | 36 | 2021 |
| Epidemiology of fungaemia in Sweden: A nationwide retrospective observational survey L Klingspor, M Ullberg, J Rydberg, N Kondori, L Serrander, J Swanberg, ... Mycoses 61 (10), 777-785, 2018 | 36 | 2018 |
| Differences in epidemiology of candidaemia in the Nordic countries–what is to blame? L Hesstvedt, MC Arendrup, E Poikonen, L Klingpor, V Friman, I Nordøy, ... Mycoses 60 (1), 11-19, 2017 | 33 | 2017 |
