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APA Citation
Muether, P. S., Kribs, A., Hahn, M., Schumacher, J., Eifinger, F., Kirchhof, B., Roth, B., & Fauser, S. (2012). no advanced retinopathy of prematurity stages 4 or 5 in a large high-risk German cohort. British journal of ophthalmology, 96(3), 400–404. http://access.bl.uk/ark:/81055/vdc_100137792445.0x000051