This system and the compilation of information herein are copyright.
Unless otherwise stated, information can be freely used for academic or research purposes. Appropriate citations must be used where information contained herein is quoted. No commercial use is permitted without the express permission being sought. Contact the Principal Investigators in the first instance.
Where copyright of data and illustrations contained within this system remains with the original authors this is clearly indicated; the author or publisher must be contacted before such information is used.
The SPA Database should be cited as follows: