Unbreakable over 1 year ago Should the Erythroblast (Hataraku Saibou) and Myelocyte (Hataraku Saibou) tags be used together with the Red Blood Cell (Hataraku Saibou) and White Blood Cell (Hataraku Saibou) tags? The current usage is about 50/50 and it made me unsure about it.