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RYAZAN, RUSSIA - JANUARY 31, 2017: Russia's oldest working surgeon Alla Ilyinichna Levushkina, 89, seen after a surgery at Ryzan City Hospital No 11. She performs at least four surgeries per week. On May 5, 2017, Alla Levushkina is to turn 90. Alexander Ryumin/TASS (Photo by Alexander Ryumin\TASS via Getty Images)

RYAZAN, RUSSIA - JANUARY 31, 2017: Russia's oldest working surgeon Alla Ilyinichna Levushkina, 89, seen after a surgery at Ryzan City Hospital No 11. She performs at least four surgeries per week. On May 5, 2017, Alla Levushkina is to turn 90. Alexander Ryumin/TASS (Photo by Alexander Ryumin\TASS via Getty Images)