Spier, Sheldon2018-09-272018-09-272008-01-01Sheldon Spier, “Letters to the Editor,” Canadian Respiratory Journal, vol. 15, no. 4, pp. 219-219, 2008. doi:10.1155/2008/109374http://hdl.handle.net/1880/108510https://doi.org/10.11575/PRISM/44500Journal Article2018-09-27enCopyright © 2008 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.https://doi.org/10.1155/2008/109374