; and (ii) prohibit the Organization from engaging in any activity that could reasonably be expected to have the effect of denying or discouraging assignment to or an election of an ESRD Fee-For-Service Integrated Care Model offered by an Organization by a Program-eligible beneficiary whose medical condition or history indicates a need for substantial future medical services. (C) Quality assurance; patient safeguards Each agreement between the Secretary and an Organization under this section shall require that such Organization have in effect at a minimum— (i) a written plan of quality assurance and improvement, and procedures implementing such plan, in accordance with regulations