She donated regularly until 2001 , when she was diagnosed with ovarian cancer . Margaret Smith , 90 , began giving blood in 1954 in Pasadena , California . Delfino was diagnosed with ovarian cancer in 2001 , but has since recovered . Interview : ` ` It can mean the difference between life and death for some people ''
Margaret Smith , 90 , began giving blood in 1954 in Pasadena , California . Delfino was diagnosed with ovarian cancer in 2001 , but has since recovered . Interview : ` ` It can mean the difference between life and death for some people ''