tumblr via “hirotamaki: rosarosa-over100notes: “心臓マッサージとは、『胸骨が4?5cm程度沈むように圧迫する』のが正しい方法です。 それを『毎分100回』行なうのですから、 …” https://t.co/Bl9YFoSujd



from Twitter https://twitter.com/itarunozaki

February 10, 2019 at 12:19PM
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