67. Every podiatrist who practises within a partnership or joint-stock company of podiatrists is responsible for the content of every advertisement made on their behalf or on behalf of the partnership or joint-stock company, unless the name of the podiatrist who is responsible for the content of the advertisement is clearly indicated in the advertisement or unless one of the podiatrists demonstrates that the advertising was done without his or her knowledge and consent and in spite of the measures taken to ensure compliance with those rules.