Ключевые слова: april, background, black, blackboard, care, celebration, color, colorful, concept, copy, creative, date, day, education, environmental, global, happy, health, healthcare, healthy, holiday, isolated, job, letters, life, medical, medicament, medication, medicinal, medicine, message, minimal, minimalism, occupation, pharmaceutical, phrase, plastic, prevention, profession, professional, protection, recovery, sign, space, square, symbol, text, treatment, word, world,