References
- Grayston J T. Infections caused by Chlamydia pneumoniae strain TWAR. Clin Infect Dis 1992; 15: 757–763
- Kleemola M, Saikku P, Visakorpi R, Wang S P, Grayston J T. Epidemics of pneumonia caused by TWAR, a new Chlamydia organism, in military trainees in Finland. J Infect Dis 1988; 157: 230–236
- Saikku P, Ruutu P, Leinonen M, Panelius J, Tupasi T E, Grayston J T. Acute lower respiratory tract infection in Filipino children associated with Chlamydia TWAR antibody. J Infect Dis 1988; 158: 1095–1097
- Grayston J T, Campbell L A, Kuo C C, Mordhorst C H, Saikku P, Thom D H, Wang S P. A new respiratory tract pathogen; Chlamydia pneumoniae, strain TWAR. J Infect Dis 1990; 161: 618–625
- Saikku P, Wang S P, Kleemola M, Brander E, Rusanen E, Grayston J T. An epidemic of mild pneumoniae due to an unusual strain of Chlamydia psittaci. J Infect Dis 1985; 151: 832–839
- Grayston J T, Diwan V K, Cooney M, Wang S P. Community and hospital acquired pneumonia associated with Chlamydia TWAR infection demonstrated serologically. Arch Intern Med 1989; 149: 169–173
- Sundelöf B, Gnarpe J, Gnarpe H, Grillner L, Darougar S. Chlamydia pneumoniae in Swedish patients. Scand J Infect Dis 1993; 25: 429–433
- Grayston J T, Mordhorst C H, Bruu A L, Vene S, Wang S P. Countrywide epidemics of Chlamydia pneumoniae strain TWAR in Scandinavia, 1981–1983. J Infect Dis 1989; 159: 1111–1114
- Puolakkainen M, Ukkonen P, Saikku P. The seroepidemiology of Chlamydiae in Finland over the period 1971 to 1987. Epidemiol Infect 1989; 1102: 287–295
- Stolk-Engelaar M VM, Peeters M F. Heeft Clamydia TWAR betekenis in Nederland?. Ned Tijdschr Geneeskd 1990; 134: 1094–1097
- Wang S P, Kou C C, Grayston J T. Formalinized C. trachomatis organisms as antigen in the microimmunofluorescence test. J Clin Microbiol 1979; 10: 259–261
- Wang S P, Grayston J T. Micro-immunofluorescence serology of Chlamydia trachomatis. Medical virology III, L M de la Maza, E M Peterson. Elsevier Science Publishing, Amsterdam 1984; 87–118
- Saikku P, Mattila K, Nieminen M S, Huttunen J K, Leinonen M, Ekman M R, Makelä P H, Valtonen V. Serological evidence of an association of a novel Chlamydia, TWAR, with chronic coronary heart disease and acute myocardial infarction. Lancet 1988; 2: 983–986
- Verkooyen R P, Hazenberg M A, Van Haaren G H, van den Bosch J M, Snijder R J, van Helden H P, Verbrugh H A. Age related interference with Clamydia pneumoniae microimmunofluorescence serology due to circulating rheumatoid factor. J Clin Microbiol 1992; 30: 1287–1290
- Jónsson J A Árnason, Valdimarsson H. Enzyme-linked immunosorbent assay (ELISA) screening test for detection of rheumatoid factor. Rheumatology 1986; 6: 199–204
- Byron W B, Hollander M. Statistics; A Biomedical Introduction. John Wiley & Sons, New York 1977; 211–215
- Snedecor G W, Cochran W G. Statistical Methods. The Iowa State University Press, Ames, Iowa 1980; 107–135
- Kobayashi S, Morishita T, Miyake T, Fukushi H, Hirai K, Ishihara Y, Isomura S. Prevalence of Chlamydia pneumoniae in Japan. J Infect Dis 1991; 163: 417–418
- Shirodaria P V, Fraser K B, Stanford F. Secondary fluorescent staining of virus antigen by rheumatoid factor and fluorescein-conjugated anti-IgM. Ann Rheum Dis 1973; 32: 53–57
- Allander E, Björnsson O J, Kolbeinsson A, Ólafsson Ó N Sigfússon, Orsteinsson J. Rheumatoid factor in Iceland: A population study. Int J Epidemiol 1972; 1: 211–223
- Dequeker J, van Noyen R, Vandepitte J. Age-related rheumatoid factors – incidence and characteristics. Ann Rheum Dis 1969; 28: 431–435