ELECTRON MICROSCOPY: MUSCLE: MUSCLE, SMOOTH, SPHINCTER PUPILLAE; A=PIGMENT GRANULES(MELANIN), B=SARCOPLASM, BUFO MARINUS
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ELECTRON MICROSCOPY: MUSCLE: MUSCLE, SMOOTH, SPHINCTER PUPILLAE; A=PIGMENT GRANULES(MELANIN), B=SARCOPLASM, BUFO MARINUS