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ORIGINAL RESEARCH
Comparative analysis of physical development in children living in Samara and Nizhny Novgorod
1 Samara State Medical University, Samara, Russia
2 Privolzhsky Research Medical University, Nizhny Novgorod, Russia
Correspondence should be addressed: Mikhail Yu. Gavryushin
Chapayevskaya st. 89, Samara, 443099, Russia; ur.umsmas@nihsuyrvag.uy.m
Author contribution: Sazonova OV — academic advising; Bogomolova ES, Kalyuzhny EA — data acquisition and processing; Gavryushin MYu — research initiator, design, data acquisition; Trubetskaya SR — literature analysis, manuscript writing and editing.
Compliance with ethical standards: the study was approved by the Ethics Committee of the Samara State Medical University (protocol No. 2 dated February 24, 2021). The informed consent was obtained from all subjects (their legal representatives).