@ARTICLE{
author={Mihajlovic Sladjana J,Nikolic Dejan P,Santric-Milicevic Milena M,Milicic Biljana R,Rovcanin Marija G,Acimovic Andjela,Lackovic Milan},
year={2022},
title={Four Waves of the COVID-19 Pandemic: Comparison of Clinical and Pregnancy Outcomes},
journal={VIRUSES-BASEL},
volume={14},
number={12},
pages={-},
document_type={Article},
} 

