For citations:
Karpova A.L., Mostovoi A.V., Baryshnikova I.Yu., Karpov L.N., Magomedova M.A. Heart beat rate in healthy full-term newborn infants across different historical periods: a systematic review. Obstetrics, Gynecology and Reproduction. (In Russ.) https://doi.org/10.17749/2313-7347/ob.gyn.rep.2026.734
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