%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Semkina_etal2016} {\textquotedblleft}\textit{Relationship between the Size of Magnetic Nanoparticles and Efficiency of MRT Imaging of Cerebral Glioma in Rats}{\textquotedblright}. Semkina AS, Abakumov MA, Abakumov AM, Nukolova NV, Chekhonin VP, Bulletin of experimental biology and medicine \textbf{161}, 292 (2016).   http://doi.org/10.1007/S10517-016-3398-Y

\end{thebibliography}

\end{document}

