Contribute to scientific debate

Particularly in a field with limited and dispersed knowledge, scientific communication may lead to improvements. Critical comments and suggestions for amendments and improvement are highly welcome. Currently, the database is only updated occassionally on a voluntary basis. However, if you have any comments or suggestions, do not hesitate to contact the database coordinators.

Proposed format for new estimates (Word document).

Send us your comments

Additional countries could be included in the database, provided that there is funding for country reports and database processing. Proposals are welcome.