ASSESSMENT OF RISKS FOR BLEEDING DURING PRETERM LABOR FROM THE CAUSES OF BLEEDING Article Novikova V., Kamenskikh G., Olenev A., Levakov S., Lebedeva M., Apresyan S., Gagayev C., Duhin A., Kostin I., Soyunov M., Semyatov S., Startseva N. Akusherstvo i Ginekologiya. ООО «Бионика Медиа». 2019. P. 78-84