AU - Kuehn BM TI - DOctoral-level programs prepare nurses for expanded roles in care and research PT - JOUR DP - 2009 TA - JAMA pages = {2075-2078}, VI - 302 IP - 19 AID - 10.1001/jama.2009.1631 [doi] 4100 - http://dx.doi.org/10.1001/jama.2009.1631 SO - JAMA November 18, 2009 302(19):2075