Ключевые слова: 3d, atoms, background, biochemistry, biology, care, chemical, chemical compound, chemistry, clinic, colorful, complex, element, enzyme, gastric, gastric juice, health, healthy, human, illustration, laboratory, medical, medication, medicine, model, molecular, molecule, pepsin, peptide, perstatin, perstatine, physiology, prescription, prevention, protein, protein data bank, research, ribbons, science, scientific, stomach, structure, wellness,