The Graphical Sheme for the New Method (IMAGE) Tomsk Polytechnic University Caption Environment-friendly obtaining betulin ox-derivatives: a graphical abstract Credit Tomsk Polytechnic University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.