Cengiz, A. B., Yıldırım, İ., Ceyhan, M., Seçmeer, G., Gür, D., & Kara, A. (2009). Comparison of nasopharyngeal culture, polymerase chain reaction (PCR) and serological test for diagnosis of pertussis. The Turkish Journal of Pediatrics, 51(4), 309-316. https://doi.org/10.24953/turkjpediatr.2009.2308