Ключевые слова: abdominal, anatomical, anatomy, background, biology, body, bowel, cancer, care, circulation, clipboard, closeup, colon, composition, concept, diarrhea, digestive, disease, education, flat, gastric, gastrointestinal, glass, graphic, health, human, illness, illustration, immune, infection, inflammation, internal, intestine, large, magnifying, medical, medicine, organ, pain, pill, red, science, set, stethoscope, stomach, system, top, tract,