https://pubmed.ncbi.nlm.nih.gov/7512509/
Decreased opsin mRNA and immunoreactivity in progressive rod-cone degeneration (prcd): cytochemical...
Opsin mRNA level and immunoreactivity were examined by in situ hybridization and immunocytochemistry in normal and progressive rod cone degeneration...
https://www.pcs.agriculture.gov.ie/
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