Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5253810.17816/kazmj52538MiscellaneousMeasurement of blood flow velocity using a method that simultaneously provides data on the activity of the circulation of the right and left heartGilmanA.info@eco-vector.com131219363212149914992711202027112020Copyright © 2020, Gilman A.2020<p>Measurement of blood flow velocity using a method that simultaneously provides data on the activity of the circulation of the right and left heart</p>Kazan Medical archiveКазанский медицинский архив