City's third-place ranking upsets business boosters San Diego was selected as one of four finalists in the competition to become home to California's new stem cell institute, but its proposal placed third in a preliminary ranking of the contenders. A six-member team that reviewed 10 proposals submitted for the site of the California Institute for Regenerative Medicine ranked San Francisco as the best location, followed by Sacramento, San Diego and Emeryville. Although the ranking might not play into the final site selection, which is expected to be announced at a meeting May 6, San Diego's placement had local business boosters...