Marshall Albert Barber (1868–1953) was a physician who studied malaria[1][2][3] affiliated with the Rockefeller Foundation and the University of Kansas.
[4] He developed micropipette methods in 1904 for microscopic renal physiology.
[5] He also worked with the U.S. military on public health issues, offering his advice during both World Wars.
[7] In 1913 while working in Manila he may have been the first to discover mastitis in dairy cattle while experimenting on himself.
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