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. 2009 Jan 27;2(1):1–11. doi: 10.1007/s12177-009-9014-x

Fig. 5.

Fig. 5

Temporal expression of mRNAs of four cone opsins in rosetted spheroids (a) and after treatment with 50 ng/ml PEDF (b). Opsin mRNA was analyzed by semi-quantitative RT-PCR at different days in culture