erb's palsy: paralysis of the arm resulting from injury to the brachial plexus (usually during childbirth)
dysfunction: (medicine) any disturbance in the functioning of an organ or body part or a disturbance in the functioning of a social group
kaoliang: sorghums of China and Manchuria having small white or brown grains (used for food) and dry pithy stalks (used for fodder, fuel and thatching)