KLK3 and cancer: DCPC also sponsors optional modules in support of CDC cancer program priorities, including questions on excess sun exposure (BRFSS 2010, 2012, and 2016 surveys), HPV testing and vaccination (BRFSS 2013 and 2014 surveys), shared decision making about prostate-specific antigen (PSA) tests (BRFSS 2012, 2013, 2015, and 2016 surveys), clinical breast examination (BRFSS 2015 and 2016 surveys), and cancer survivorship (BRFSS 2009, 2010, 2012, 2014, and 2016 surveys).