Kolff

[kohlf, kolf]

noun

Wil·lem J(o·han) [wil-uh m yoh-hahn, -han] /ˈwɪl əm ˈyoʊ hɑn, -hæn/, 1911–2010, U.S. physician and inventor, born in the Netherlands: developed the artificial kidney machine.

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