Journal of Biosocial Science /
Volume 44 /
Issue 04 /
July 2012,
pp 433 - 458
Copyright © Cambridge University Press
2012
The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence <http://creativecommons.org/licenses/by-nc-sa/3.0/>. The written permission of Cambridge University Press must be obtained for commercial re-use.
DOI:
http://dx.doi.org/10.1017/S0021932012000107
(About DOI),
Published online: 11 April 2012