@article {66779,
	title = {Breast changes in workers engaged in the manufacture of sex hormones},
	journal = {Egyptian J of Occupational Medicine},
	volume = {16},
	year = {1992},
	pages = { 237-244},
	author = {El-Samra H Gamal and El-Safty K Amal and Siha S Mona and Fathy A Ahmed}
}
