Risk factors for ventilatory impairment among middle-aged and elderly men. The Normative Aging Study.
Risk factors for ventilatory impairment among middle-aged and elderly men. The Normative Aging Study.
复制标题
中老年男性通气障碍的危险因素。
作者：
O'Connor,GT;Sparrow,D;Segal,M;Weiss,ST
