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Al Otair HA, Al-Boukai AA, Ibrahim GF, Al Shaikh MK, Mayet AY, Al-Hajjaj MS.Al Otair HA, et al. Among authors: al shaikh mk, al boukai aa, al hajjaj ms.Ann Thorac Med. 2014 Jan;9(1):18-22. doi: 10.4103/1817-1737.124420.Ann Thorac Med. 2014.PMID: 24551013Free PMC article.