Incidence of retrolental fibroplasia in England and Wales in 1951.
D001699:Biometry; D004739:England; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D012178:Retinopathy of Prematurity / Q000706:statistics & numerical data*; D014852:Wales
RETROLENTAL FIBROPLASIA/statistics