Oakley, Barbara A Concepts and implications of altruism bias and pathological altruism. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Jun 2013 - 10408-15 p. digital Publication Type: Journal Article ISSN: 1091-6490 Standard No.: 10.1073/pnas.1302547110 doi Subjects--Topical Terms: AltruismBiological EvolutionCooperative BehaviorHumans