Hans Christian Joachim Gram (13 September 1853 – 14 November 1938) was a Danish bacteriologist who developed the Gram stain, still a standard technique to classify bacteria and visualize them under a microscope. == Early life and education == Gram was the son of Frederik Terkel Julius Gram, a professor of jurisprudence, and Louise Christiane Roulund.
Hans Christian Joachim Gram (13 September 1853 – 14 November 1938) was a Danish bacteriologist who developed the Gram stain, still a standard technique to classify bacteria and visualize them under a microscope. == Early life and education == Gram was the son of Frederik Terkel Julius Gram, a professor of jurisprudence, and Louise Christiane Roulund.
Source: Wikipedia "Hans Christian Gram" · CC BY-SA 4.0
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