1. How reliable are letters?;Relman, A.S.;N EnglJ3 Med,1983
2. Thoughts about medical writing. XXXVII. Verify your references;Roland, C.G.;Anesth Anaig,1976
3. Should letters be reviewed?;Glass, A.R.;N EnglJ7 Med,1983
4. Verify your references: a word to medical writers;Place, F.;New York Medical Journal
5. Accuracy of published medical reference citations. J7ournal of Technical Writing and;Goodrich, J.E.; Roland, C.G.;Communication,1977