1.   As a result of these findings Glaxo stopped clinical trials comparing ranitidine with omeprazole for ethical reasons.

2.   Plundering enroute was forbidden, probably because it reduced the speed of the army rather than for any ethical reasons.

3.   Thorough examination including endoscopy with biopsy of asymptomatic patients, however, is hardly conceivable because of ethical reasons.

4.   We did not look at the histological correlate of the inflammatory mediators as for ethical reasons we did not perform sigmoidoscopy and rectal biopsy.

5.   For ethical reasons, treatment regimens were discussed with patients who rebled.

6.   Because of ethical reasons, not all rebleeders in both groups received a second injection with the same solution.

7.   This is not possible for obvious ethical reasons.