<https://edu-science.ru/dental-practice-in-bulgaria-within-the-period-of-transition-to-market-economy/#webpage>
<http://schema.org/url>
<https://edu-science.ru/dental-practice-in-bulgaria-within-the-period-of-transition-to-market-economy/>
<https://edu-science.ru/dental-practice-in-bulgaria-within-the-period-of-transition-to-market-economy/>