Grabeklis, Andrey R.
Skalny, Anatoly V.
Skalnaya, Anastasia A.
Zhegalova, Irina V.
Notova, Svetlana V.
Mazaletskaya, Anna L.
Skalnaya, Margarita G.
Tinkov, Alexey A.
Funding for this research was provided by:
Russian Foundation for Basic Research (18-013-01026)
Article History
Received: 10 July 2018
Accepted: 2 September 2018
First Online: 12 September 2018
Compliance with Ethical Standards
: The present study was performed in agreement with the ethical standards set in the Declaration of Helsinki (1964) and its later amendments. The protocol of the investigation was approved by the Institutional Ethics Committee (Yaroslavl State University, Yaroslavl, Russia). Informed consent was obtained from the parents, who were informed about the study, its objectives, and methods. All clinical procedures (examination, sampling) were performed in the presence of parents.
: The authors declare that they have no conflict of interest.