Ключевые слова: backgrounds, biology, bleed, bleeding, blood, blood loss, cancer, clinic, danger, dark, dna, donation, drip, element, equipment, glove, healthcare, horror, hospital, human, indulgence, injecting, intensive, iv, laboratory, liquid, male, medical, medicine, needle, nobody, procedure, professional, protective, red, red blood cells, risk, sample, shock, sketching, spooky, substance, surgical, system, test, therapy, trauma, tube, tubing, violence,