Ключевые слова: 4, awareness, background, campaign, cancer, care, charity, chemotherapy, color, colorful, concept, day, diagnosis, different, disease, examination, february, fight, flat, grey, health, help, hope, illness, international, lay, light, many, medical, medicine, month, nobody, object, oncology, prevention, problem, ribbons, set, sickness, solidarity, support, survive, symbol, top, treatment, view, world,