You could put publications as an award/accomplishment or diversity of experience... perhaps whichever section you have more room...
You can also mention them in the last "Additional Comments" section:
"Is there anything else relevant to your application that you feel the Committee should take into consideration? This question is not scored however additional information will be taken into consideration for your application. Examples of information you could provide in this section could be: interested in Rural Medicine; Aboriginal applicant; published papers or any other information you wish the Committee to know."