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Figure 4 Photomicrograph of the stented coronary segments 3 wk after stent implantation. A, Neointima and media around the PLLA stent thread. I, Neointima; M, media; A, adventitia; S, stent thread (x400). B, A coronary segment implanted with the control stent (x40). C, A coronary segment implanted with the ST638 stent (x40). Calibration: 0.1 mm for A, and 1.0 mm for B and C.
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