เป็นมนุษย์, เลือด, หลอดเลือดดำ, Aterien, ระบบ, ร่างกาย, ทางการแพทย์, สุขภาพ, โรค, อรุณ, คุณหมอ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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