karen-sanders-unca-olli-july-2017-newsletter Written by Karen Sanders, MSN, RN, AHN-BC, HWNC-BC on July 29, 2018. Karen Sanders featured in the UNCA OLLI weekly Observer Newsletter Previous Karen Sanders, MSN, RN, AHN-BC, HWNC-BC This information box about the author only appears if the author has biographical information.