Казахский национальный педагогический университет им. Абая.

BMJ Publishing Group.

Slovak Academic Press Ltd..

Professional Medical Publications.

Elsevier BV.

Hellenics Society of Obstetrics and Gynecology.

AME Publishing Company.

BMJ Publishing Group.

Elsevier Science Publishing Company, Inc..

American Society for Clinical Investigation.

Mosby.

Elsevier Science Publishing Company, Inc..