Abstr: corneal collagen crosslinking is a new treatment for the corneal ectatic disorders.

文章摘要：角膜胶原交联技术是用于治疗角膜扩张性疾病的一项新方法。

Conclusion the treatment of ectatic cardiomyopathy with metoprolol needs long-term therapy so as to improve the cardiac functions remarkably and enhance the survival quality of the patients.

结论倍他乐克治疗扩张型心肌病需长程疗法，才能明显改善心功能，提高病人的生存质量。