© 2007. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
No takes yet. Share an insight, caveat, or question.
Galwa et al. (2007) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: