[1] Norwegian Univ Sci & Technol, Dept Publ Hlth & Nursing, N-7491 Trondheim, Norway
[2] Northern State Med Univ, Dept Pedag & Psychol, Arkhangelsk, Russia
[3] Northern State Med Univ, Dept Publ Hlth Hlth Care & Social Work, Arkhangelsk, Russia
[4] Al Farabi Kazakh Natl Univ, Dept Hlth Policy & Management, Alma Ata, Kazakhstan
[5] Sechenov Univ, Sechenov Moscow State Med Univ 1, Dept Epidemiol & Modern Vaccinat Technol, Moscow, Russia
[6] Northern State Med Univ, Cent Sci Res Lab, Arkhangelsk, Russia
[7] Northern Arctic Fed Univ, Dept Biol Ecol & Biotechnol, Arkhangelsk, Russia
[8] Uppsala Univ, Dept Womens & Childrens Hlth, Uppsala, Sweden
[9] Sechenov Univ, IM Sechenov First Moscow State Med Univ, Dept Gen Hyg, Moscow, Russia