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. 2015 Feb 17;2:4. doi: 10.3389/fcvm.2015.00004

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Copyright © 2015 Ogawa and Matsubara.

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) or licensor 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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Pulmonary angiography before and after balloon pulmonary angioplasty (BPA). (A) Subtotal obstruction was noted in the pulmonary angiography before BPA (arrow). (B) Pulmonary angiography after BPA showed blood flow to the peripheral arteries after balloon dilatation. The arrow indicates the same site as the arrow in (A).