"We saw more than fivefold artery growth comparedwiththecontrols, " which included one group of animals that only got VEGF and another that got the nanofibers without the VEGF.
The team from a hospital in Bari, southern Italy, comparedthe breath of 37 patients known to have bowel cancer with that of 41 "controls" who were thought to be healthy.
The initial studies showing that secondhand smoke is dangerous compared nonsmoking spouses of smokers with age-matched nonsmoking controls who were married to nonsmokers.