Table 1

 Letters published in the Postgraduate Medical Journal over an 18 month period

All letters published in the Postgraduate Medical Journal over an 18 month period from January 2003 were reviewed. One author published three letters during this period.
Letters published during period18
Authors27
Letters with one author12
Total references quoted in letters73
Letters in which authors quoted themselves8
Single author letters in which author quoted his or her own work6
References where authors cited themselves12
    Citations in full papers5
    Citations of their own letters7