11.  The treatment is made by using antibody genes from humans and mice.

12.  There are relatively few companies making asthma treatments, and it is difficult for outsiders to jump in with new products.

13.  Whatever the reason, the result is a series of elegantly simple and exceedingly effective ways of making basic treatments work better.

14.  But he would not make any treatment decisions based on the recent findings, he cautioned.

15.  The new method should make the treatment much less demanding by delivering the laser without an operation.