For citations:

Novitskaya T.V. ORIGINAL INVESTIGATIONS Original article EFFECTS OF MAGNESIUM LEVELS ON THE COURSE OF PREGNANCY IN PATIENTS WITH SMALL HEART ABNORMALITIES AND UNDIFFERENTIATED CONNECTIVE TISSUE DYSPLASIA. Astrakhan medical journal. 2022;17(3):53-59. (In Russ.) https://doi.org/10.48612/agmu/2022.17.3.53.59