. . . "Willem" . . "eint001" . "Einthoven, Willem (1860-1927)" . _:B223b8abb0fb3c05b1b5be4cc622c282d . "1860-05-21"^^ . "Einthoven" . "Leiden" . "Willem Einthoven" . "1927-09-28"^^ . "natuurwetenschapper" . "Willem Einthoven" . _:B223b8abb0fb3c05b1b5be4cc622c282d . _:B223b8abb0fb3c05b1b5be4cc622c282d "2021-02-08"^^ . _:B223b8abb0fb3c05b1b5be4cc622c282d . _:B223b8abb0fb3c05b1b5be4cc622c282d . _:B223b8abb0fb3c05b1b5be4cc622c282d . _:B223b8abb0fb3c05b1b5be4cc622c282d . _:B223b8abb0fb3c05b1b5be4cc622c282d .