Arvas, MikkoFinnish Red Cross Blood ServiceSenior ScientistAnemia, Blood donation, Blood donor health, Data analysis, Ferritin, HemoglobinSurakka, SusannaUniversity of Helsinki, Sanapolku Oy, Vantaan kaupunki Sosiaali- ja terveyspalvelutSubstitute University Teacher, Speech and Language Therapist, Customer Service Representative, Speech and Language Therapist, Chief Speech Therapistearly language, speech and language therapyHautamäki, JohannaCentria University of Applied SciencesRDI-expert/service designerMultidiciplinary, Organisational development, RDI, Service DesignKeckman-Koivuniemi, HanneleTampere UniversityService Manager, Manager for User Services module-