ชีพจร, การเต้นของหัวใจ, cardiogram, ความถี่, ดูแลสุขภาพ, ลูกบอล, รอบ, ทางการแพทย์, อุปกรณ์ทางการแพทย์, อุปกรณ์, เร้าใจ
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