Polycythemia vera, illustration. Polycythemia vera is a rare slow-growing blood cancer in which bone marrow makes too many red blood cells. These excess cells thicken blood, slowing its flow — Stock photos

"Polycythemia vera, illustration. Polycythemia vera is a rare slow-growing blood cancer in which bone marrow makes too many red blood cells. These excess cells thicken blood, slowing its flow" is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 900px, 2600 x 1463px, 7200 x 4050px. The minimum price for an image is 49$. Image in the highest quality is 7200 x 4050px, 300 dpi, and costs 449$.