\begin{overpic}[width=0.49\textwidth]{ys_ok10vma_h_17_bse}
\put(1,74){\colorbox{white}{(\sublabel{ys_ok10vma_h_17_bse}) \href{http://dream.misasa.okayama-u.ac.jp/?q=20190305121910-587743}{ys_ok10vma_h_17_bse}}}
%%(\subref{ys_ok10vma_h_17_bse}) \href{ys_ok10vma_h_17_bse}
\color{red}
\put(17.2,24.2){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20170306190851-078291}{spot of ys_ol_OK10VMa@39}} % 20170306190851-078291 % \vs(-3307.0, 1910.7)
\put(42.2,26.5){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20190307112320-941892}{spot of to_ol_ok10vma_h@19}} % 20190307112320-941892 % \vs(-3269.9, 1915.1)
\put(50.0,40.0){\footnotesize \circle{0.7} \href{http://dream.misasa.okayama-u.ac.jp/?q=20190304141435-643811}{spot of ys_ol_ok10vma_h@17}} % 20190304141435-643811 % \vs(-3258.0, 1936.0)
%%scale 10 micro meter
\put(1,1){\line(1,0){7.0}}
\end{overpic}