Pihlajamäki, Arto---Sundvik, DennisHanken School of Economics--Hakkarainen, JanneFinnish Meteorological InstituteSenior Research Scientist-Lehtilä, TuomoUniversity of Helsinki--Lipasti, MaijaUniversity of TurkuDoctoral researcherClimacteric symptoms, Clinical epidemiology, Cohort studies, Epidemiologic studies, Health promotion...Srivastava, Varsha---Kamau, Suleiman MureithiJAMK university of applied sciencesSenior Lecturer-Hienola, Anca---Leinonen, HetaTampere University--Rantala, ArjaOulu University of Applied SciencesPrincipal LecturerAnxiety, Children, Day Surgery, Fear, Gamification, Gamified Mobile Health Intervention, Meta-analys...