为了提取肌动蛋白、线粒体和DNA而被固定和染色的牛肺动脉内皮细胞，由旧金山加州大学的托斯滕·惠特曼博士拍摄。
Dr. Torsten Wittmann of the University of California, San Fransisco, submitted this image of bovine pulmonary artery endothelial (BPAE) cells fixed and stained for actin, mitochondria, and DNA.
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