@conference {67147,
	title = {Breast changes in workers engaged in the manufacture of sex hormones },
	booktitle = {III International Congress on Women, Work and Health},
	year = {1992},
	month = { May 2002},
	address = {Sweden},
	author = {El-Samra H Gamal and El-Safty K Amal and Siha S Mona and Fathy  M AHmed}
}
