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To the Editor:
—During the last six months, our retrolental fibroplasia (RLF) research group has been notified, informally, of almost 30 cases of RLF in children born since 1958, in various parts of the United States. It would be of great assistance to our work of following the course and incidence of this disease if ophthalmologists and pediatricians would inform us of any RLF in patients born in the last five years. If possible, we would appreciate knowing the birth date, birth weight, sex, ophthalmoscopic findings, and any other relevant information.