Left main bronchus obstruction after patent ductus arteriosus ligation: an unusual complication.
Harris LL, Krishnamurthy R, Browne LP, Morales DL, Friedman EM. Left main bronchus obstruction after patent ductus arteriosus ligation: an unusual complication. Int J Pediatr Otorhinolaryngol. 2012 Dec; 76(12):1855-6.