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J. Horton Young
Br J Ophthalmol 1940; 24: 597-610. doi:10.1136/bjo.24.12.597
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Terence East and L. H. Savin
Br J Ophthalmol 1940; 24: 611-613. doi:10.1136/bjo.24.12.611
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J. Jameson Evans
Br J Ophthalmol 1940; 24: 614-616. doi:10.1136/bjo.24.12.614
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Br J Ophthalmol 1940; 24: 617-623. doi:10.1136/bjo.24.12.617
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