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Chao CT.Chao CT.South Med J. 2011 Jun;104(6):462-3; author reply 463. doi: 10.1097/SMJ.0b013e31821a8947.South Med J. 2011.PMID: 21886037No abstract available.
Chao CT.Chao CT.South Med J. 2011 Sep;104(9):666; author reply 666-7. doi: 10.1097/SMJ.0b013e3182294d5b.South Med J. 2011.PMID: 21886090No abstract available.