Except as otherwise provided in section 5414, the chronic disease advisory committee may create a subcommittee to advise it as to a specific chronic disease, determine the size of the subcommittee, and appoint its members, who need not all be members of the committee. The chairperson of a subcommittee shall be a member of the committee. The members of a subcommittee shall be individuals concerned with the prevention and control of the specific chronic disease.