Some believe that breast cancer results from a complex, multistep process, beginning with a faulty gene that causes cells to misbehave ​ — to divide furiously, to invade other tissue, to evade capture by immune cells, and to launch stealthy attacks on vital organs.
मगर फिर भी यह सवाल बार - बार उठता है, आखिर स्तन कैंसर कैसे और क्यों होता है?