Molecules of insulin circulating in the blood stream — Stock photos

"Molecules of insulin circulating in the blood stream" is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 1200px, 2600 x 1950px, 4827 x 3620px. The minimum price for an image is 49$. Image in the highest quality is 4827 x 3620px, 300 dpi, and costs 449$.