Red blood cell order to stimulate production of red blood cells. Both practices are banned by the World Anti-Doping Agency. The first person to describe red blood cells was the young Dutch biologist Jan Swammerdam, who had used an early microscope in 1658 to study the blood of a frog. Unaware of this work, Anton van Leeuwenhoek provided another microscopic description in 1674, this time providing a more precise description of red blood cells, even approximating their size, "25,000 times smaller than a fine grain of sand". In 1901, Karl Landsteiner published his discovery of the three main blood groups—A, B, and C
Red as Blood, or Tales from the Sisters Grimmer story, "The Waters of Sorrow", which had been previously published in 2011 on Weird Tales. Red as Blood, or Tales from the Sisters Grimmer Red as Blood, or Tales from the Sisters Grimmer is a short story collection of dark fantasy retellings of popular fairytales by British author Tanith Lee. Contrary to what the title may suggest, it not only includes retellings of fairytales by the Brothers Grimm, but also by Charles Perrault, Gabrielle-Suzanne Barbot de Villeneuve or Alexander Afanasyev. The title story was nominated for a Nebula Award. "Red as Blood, or Tales from the Sisters Grimmer" contains the