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Estimated total number of cones (mean ± SD) in 5-week-old rd (C3H/He/J) mice retinas cultured in DMEM alone and from 5-week-old rd mice retinas cocultured with cells from 8-day-old normal mice retinas with cells from 8-day-old rd mice retinas, with retinal explants from 5-week-old normal mice, and with retinal explants from 5-week-old rd mice. *P < 0.0001.
