CENIM-CSIC Research Group seeks to survey Professionals

We are a research group from the CENIM-CSIC and we are carrying out a study about the methods of cleaning and protection of historical lead.
As part of this study, we want to know the methods more applied by professionals and their personal experience about them.
The survey should take 10-15 minutes and it is available in the next link.  Please feel free to pass it on.
If you are interested in the results, please leave your email in the section of contact details.  If you want more information, please feel free to contact me at t.palomar@csic.es.  Thank you in advance for your collaboration.
Dr. Teresa Palomar Sanz
Centro Nacional de Investigaciones Metalalurgicas (CENIM) Consejo Superior de Investigaciones Cientaficas (CSIC)