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. 2020 Sep 4;8:536. doi: 10.3389/fped.2020.00536

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Copyright © 2020 Park, Shrivastava, Zhang, Pollok, Finkbeiner, Gibb, Ly and Illek.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Schematic overview of CFTR mutations by five different CF genotypes. Numbers 1-27 represent exons of the CFTR gene. (A–E) F508del homozygote, F508del/R117H-7T, F508del/c.850dupA, R334W/406-1G>A, and CFTRdele2,3(21kb) homozygote.