For citations:

Makukhina T.B., Knyazeva N.A., Makukhina V.V., Kalmykova Yu.I., Svistunova N.G. Ultrasound in low-lying implantation ectopic pregnancy diagnosis at early gestational age. Ultrasound & Functional Diagnostics. 2018;(2):48-58. (In Russ.) https://doi.org/10.24835/1607-0771-2018-2-48-58