1994g-911 antagonists antagonistsandinhibitors antineoplasticagents breast breastneoplasms cancer carcinogens cardiovasculardiseases congresses control diagnosis diet drugtherapy environmental environmentalcarcinogens epidemiology geneticaspects geneticcounseling genetics immunology inhibitors metabolism neoplasms nutritionalaspects nutritionalphysiologicalphenomena physiologicalaspects physiologicaleffect phytochemicals prevention preventionandcontrol qv137t62791993 qz202f19851996 qz202i541981 smoking tamoxifen therapeuticuse tobacco tobaccouse tobaccousedisorder tumors wp870d321t1994