Web Results

www.ncbi.nlm.nih.gov/pubmed/23900551

Am J Epidemiol. 2013 Sep 15;178(6):888-9. doi: 10.1093/aje/kwt151. Epub 2013 Jul 30. Clifford et al. respond to "Biological and clinical insights from ...

www.e-education.psu.edu/styleforstudents/c3_p28.html

It is important to use these abbreviations literally and to punctuate them correctly. Many writers confuse "e.g." and "i.e.," and many type "et al." improperly or do ...