%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Song_etal2021} {\textquotedblleft}\textit{Cocktail of reactive species generated by cold atmospheric plasma: oral administration induces non-small cell lung cancer cell death}{\textquotedblright}. Song C-H, Attri P, Ku S-K, Han I, Bogaerts A, Choi EH, Journal Of Physics D-Applied Physics \textbf{54}, 185202 (2021).   http://doi.org/10.1088/1361-6463/abdff2

\end{thebibliography}

\end{document}

