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Did you mean kara nn[au] (6 results)?
Avascular island in the vascularised retina in zone II ROP.
Narang S, Hans A, Kalra NN, Chawla D. Narang S, et al. Among authors: kalra nn. BMJ Case Rep. 2021 Jan 28;14(1):e237004. doi: 10.1136/bcr-2020-237004. BMJ Case Rep. 2021. PMID: 33509863 Free PMC article.