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  2. Crapo RO, Morris AH, Gardner RM. Reference spirometric values using techniques and equipment that meet ATS recommendations. Am Rev Respir Dis 1981; 123:659-664.
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  5. Parimon T, Au DH, Martin PJ, Chien JW. A risk score for mortality after allogeneic hematopoietic cell transplantation. Ann Int Med 2006;144(6):407-414.
  6. Au et al., Biology of Blood and Marrow Transplantation. 2015; in press