RT Journal A1 Voelker R T1 IOm panel urges lifespan study of breast cancer risk JF JAMA JO JAMA YR 2012 FD January 4 VO 307 IS 1 SP 23 OP 23 DO 10.1001/jama.2011.1913 UL http://dx.doi.org/10.1001/jama.2011.1913 AB “We really need to learn more about the biological significance of various life stages at which environmental factors are encountered,” said Irva Hertz-Picciotto, PhD, MPH, chair of the committee that produced the institute's report, during a press briefing. “The breast tissue goes through its own life course with changing susceptibility over different stages of development,” added Hertz-Picciotto, of the University of California, Davis.