Senate committee substitute makes the following changes to 1st edition. Rewrites 1st edition in its entirety to direct The University of North Carolina General Administration to study and make recommendations on an appropriate structure and methodology to increase the number of primary care residencies in underserved areas of the state. Requires the study to be undertaken in collaboration with academic medical centers and medical associations throughout the state and identifies 12 specific issues to be considered in the study. Requires UNC General Administration to submit its findings and recommendations to the Joint Legislative Health Care Oversight Committee by April 1, 2012. Makes conforming changes to the bill title.