1.   In Arkansas, for example, one lawmaker recently sponsored a bill to replace lethal injection with public hangings.

2.   Limited patient trials suggest that inhalers could replace injections for many patients, but those results have yet to be borne out in pivotal trials.

3.   Pfizer is working on an inhaled form of insulin, replacing injections.

4.   Scientists in the U-S claim to have developed a chemical rub-on which will replace injections.

5.   Scientists in the U.S. claim to have developed a chemical rub-on to replace injections.