Speaking to the BBC in 2012 during a London trip to perform a piano concerto at Royal Albert Hall, he said he planned to give a show to people "who are not used to going to a serious concert".
He has now also called for a trial to compare weight-loss injections with bariatric surgery, where the size of the stomach is restricted to reduce appetite.
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Жители Санкт-Петербурга устроили «крысогон»17:52
Фото: Пелагия Тихонова / РИА Новости