pP๊NCYyI๐ฎFTOEICEๅw๓ฑมPEp๊z
20โ[h
ก2โฺ ๑สก
sณ๐I
ณ@๐Fportion
@ิF3550b
ณ๐F0โ
ๆ3โฺ
รฌ
marrow
tube
vein
artery
vessel
j [ึ
ฤงํ