Proceedings of the National Academy of Sciences USA, 110, 12, pp. 4667-72 Proceedings of the National Academy of Sciences of the United States of America Proceedings of the National Academy of Sciences of the United States of America, 2013, 110 (12), pp.4667-4672. ⟨10.1073/pnas.1221400110⟩ Proceedings of the National Academy of Sciences USA, 110, 4667-72 Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2013, 110 (12), pp.4667-4672. ⟨10.1073/pnas.1221400110⟩