"A" "appearance" of "cell aggregates" within "live" blood samples "is a sign of" more than just a "curious" finding. "They"—which appear as stacks of red blood cells, resembling coins—form when "specific" https://informe-de-anlisis-de-sa333972.bestblogskill.com/663779/rouleaux-in-live-blood-understanding-formation-and-significance