参考文献/References:
1. Wilson RA et al. Circulation,1984; 70:717
2. Bruce N et al. Am J Cardiol,1984; 53:1349-1353
3. Nestaval A et al. Cor Vasa,198; 28(1):22-30
4. Alon T et al. Chest,1986; 89(1):64-69
5. Fishman AP et al. Am Rev Respir Dis,1986; 114:775-794