AllyGPO^®, a leading innovator and next-generation specialty group purchasing organization (GPO), and BioCareSD^®, a national specialty drug distributor with nearly 50 years of experience delivering life-saving and life-changing therapies through high-touch service and a differentiated distribution model, today announced that Retina Consultants, P.C. has selected AllyGPO and BioCareSD as its primary specialty drug GPO and distribution partners…