Image: https://cdn.whensthebirthday.com/gallery/2017/1/willem-einthoven/cientifico-de-willem-einthoven.jpg
Willem Einthoven
professions.doctor de Países Bajos
Image: https://cdn.whensthebirthday.com/gallery/2017/1/willem-einthoven/cientifico-de-willem-einthoven.jpg
professions.doctor de Países Bajos