Jan Janský

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At a glance

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Domain

Science and technology

Knowledge cost

2

Influence

3

Resistance

3

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What Wikipedia says

Jan Janský (Czech pronunciation: [ˈjan ˈjanskiː]; 3 April 1873 – 8 September 1921) was a Czech serologist, neurologist and psychiatrist. He is credited with the classification of blood into four types (I, II, III, IV).

Excerpt from the Wikipedia article “Jan Janský”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Auteur inconnu, Public domain, via Wikimedia Commons.