21.   Some evidence suggests that concentrated hydrogen peroxide may cause cell changes, and may in some cases enhance the effect of some cancer-causing agents.

22.   Such slights might be more easily borne if the effect were not enhanced, sometimes outlandishly, by the puppets, which are made in France from sculpted caricatures.

23.   Tests of a promising anticancer agent known as angiostatin have shown that it enhances the effects of radiation in treating human tumors grafted into mice.

24.   The British accents of Rogers and Llewellyn somehow enhance that effect.

25.   The design will enhance the effect immeasurably.

26.   The effect is only enhanced by the restoration, which included cleaning, and by higher lighting levels.

27.   The effect is enhanced by a screen saver that adds an animated face and sound.

28.   There is also evidence that drug users are deliberately mixing prescription medicines with drugs such as LSD and MDMA to modify or enhance their effects.

29.   They mixed the heroin in a plastic cup with boiled water and a powdered antihistamine that enhances the effect, and drew it equally into three syringes.

30.   To enhance the effects, the corridors narrow, and the ceilings drop, adding claustrophobia to the jitters.