P. V. Popova
Almazov National Medical Research Centre.
Russian Federation

Polina V. Popova, MD, PhD, Head, Research Laboratory of Endocrine Diseases in Pregnancy, Institute of Endocrinology.

2 Akkuratov street, St Petersburg, 197341. 

I. V. Gorelova
Almazov National Medical Research Centre.
Russian Federation

Inga V. Gorelova, MD, PhD, Head, Research Laboratory of Reproductive Technologies, Institute of Perinatology and Pediatrics.

E. N. Grineva
Almazov National Medical Research Centre.
Russian Federation

Elena N. Grineva, MD, PhD, DSc, Professor, Director, Institute of Endocrinology, Institute of Perinatology and Pediatrics.