The 10 mL liquid loversol Rosenbek penetration-aspiration score ( 2.27 + / - 0.65 ) , oral-retaining score ( 1.60 + / - 0.50 ) and throat-retaining score ( 1.49 + / - 0.51 ) were all lower than those ( 4.19 + / - 0.73 , 2.30 + / - 0.51 , 2.41 + / - 0.50 ) in the acupuncture group separately .