Atici, Serkan, Ömer Faruk Ek, Mehmet Siddik Yildiz, Mehmet Mahfuz Şikgenç, Efraim Güzel, and Ahmet Soysal. “Symptomatic Recurrence of SARS-CoV-2 Infection in Healthcare Workers Recovered from COVID-19”. The Journal of Infection in Developing Countries 15, no. 01 (January 31, 2021): 69-72. Accessed October 23, 2021. https://jidc.org/index.php/journal/article/view/33571147.