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Keywords from Image Description:
LeeuwenhoekRedBloodCells. Red Blood cells from Salmon with Lumen cell nuclei Rote Blutkrperchen vom Lachs mit Lumen Zellkernen Dieter Gerlach Geschichte der Mikroskopie Verlag Harry Deutsch Frankfurt am Main Germany ISBN Accompanying CDROM Source given in there Leeuwenhoek van Opera Omnia seu Arcana Naturae ope exactissimorum Microscopiorum