abstract background biology blood blood cells body carbon dioxide cell count circulation concept corpuscle design disease erythrocyte fill graphic haemoglobin health hemoglobin illness iron macrocyte medicine megaloblast megalocyte microscopic New original oxygen platelets red red blood cells render science sickness style texture transfusion unique vector 3G 4G blue chip communication computer connect connection digital electronic equipment futuristic green illustration mobile motherboard PC photography program programme rgb SIM.card smart technology telecommunication telephone wallpaper wifi wireless art black color dark geometric light lines paths pattern pink rectangle retro shades shapes striped tablecloth tiles vectors white window yellow border scrapbooking classical creation desktop dez pain element float fluid frame grunge grungy horizon image liquid pastel patchy reds rough smooth swirl swoosh undulating undulation water wave waves xymonau