TY - RPRT TI - Hydroxychloroquine, dosage parameters and retinopathy. AU - D J Spalton AU - G M Verdon Roe AU - G R Hughes PY - 1993 DO - 10.1177/096120339300200604 UR - https://pubmed.ncbi.nlm.nih.gov/8136818/ ID - 8136818 ER -