国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 11月15日 06時49分

It's World #Diabetes Day. The vials of insulin in the front of this photo date to the 1930-1950s. The packages were color-coded to distinguish different strengths. In the back are vials of Humulin (human insulin) from about 1987. #WDD

[BIHAKUEN]UVシールド(UVShield)

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