จังหวะ, เส้นโค้ง, ผู้ป่วย, แบบองค์รวม, คลื่นไฟฟ้าหัวใจ, ข้าม, ชีพจร, กราฟิก, การเต้นของหัวใจ, สุขภาพ, โรค
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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