@article {516, title = {Networked for change? Identifying obstetric opinion leaders and assessing their opinions on caesarean delivery}, journal = {Social Science \& Medicine}, volume = {57}, year = {2003}, pages = {2423-2434}, url = {http://www.contrib.andrew.cmu.edu/~krack/documents/pubs/2003/2003\%20Network\%20for\%20Change.pdf}, author = {Kravitz, R L and Krackhardt, D and Melnikow, J and Franz, C E and Gilbert, W M and Zach, A} }