B. A. Petrov

• Aktivizat︠s︡ii︠a︡ dvigatelʹnoĭ dei︠a︡telʹnosti uchashchikhsi︠a︡ s uchetom regionalʹnykh osobennosteĭ
• Manipuli͡a︡tory
• Svobodnaia peresadka kozhi pri bol'shikh defektakh