For citations:
Ramazanov G.R., Kovaleva E.A., Akhmatkhanova L., Petrikov S.S. Patent foramen ovale as a cause of cryptogenic ischemic stroke. Russian neurological journal. 2022;27(2):53-59. (In Russ.) https://doi.org/10.30629/2658-7947-2022-27-2-53-59