Ключевые слова: acetylsalicylic, acetylsalicylic acid, acid, asa, aspirin, black, c9h8o4, chemical, chemical formula, chemistry, design, drawing, education, formula, handwriting, healthcare, healthy lifestyle, medicine, molecular structure, molecule, nobody, notebook, paper, pattern, pen, research, science, sign, studying, symbol, technology, text, white, writing,