Minnesota Veterinary Medical Association明尼苏达州的兽医协会 Motor Vehicle Manufacturers Association汽车制造商协会 Massachusetts Veterinary Medical Association麻萨诸塞州的兽医协会 Maryland Veterinary Medical Association马里兰大学兽医协会 Missouri Veterinary Medical Association密苏里州兽医协会 Maine Veterinary Medical Association缅因州兽医协会 Montana Veterinary Medical Association蒙大拿兽医协会