The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men
The relationship of smoking habits, physical activity and chronic bronchitis to pulmonary function and of pulmonary function and chronic bronchitis to mortality : a 40 year follow-up in middle-aged men