Kasapçopur, Ö., Özbakır, F., Arısoy, N., İngöl, H., Yazıcı, H., & Özdoğan, H. (1999). Frequency of antinuclear antibodies and rheumatoid factor in healthy Turkish children. The Turkish Journal of Pediatrics, 41(1), 67-71. https://doi.org/10.24953/turkjpediatr.1999.3200