1919-03-10/..1919-03-10/..Duration of the second internship of Hartog Melkman1919-03-10/1920-03-311919-03-10/1924-10-201919-03-10/..Duration of the second internship of Maurits RootveldtDuration of the third internship of Antonius Hendrikus Sickman1919-03-10/..1919-03-10/1924-03-311919-03-10/..1919-03-10/..
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1919-03-10
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