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