225.2. Notwithstanding section 225.1, an institution may, on the joint recommendation of the midwives practising under a service contract entered into with the institution and of the council of physicians, dentists and pharmacists of the institution, designate the council of physicians, dentists and pharmacists to exercise the functions of the council of midwives established under section 225.3. In such a case, the midwives practising under a service contract shall form part of the council of physicians, dentists and pharmacists, and shall appoint three of their number to sit on the executive committee of the council if such a committee is formed. They shall participate in the deliberations of the council and of the executive committee, if any, but have the right to vote only on matters relating to the functions of the council of midwives.