TRENDO project is part of the largest study on chronic pain in endometriosis, as the European Union proudly announce in their Cordis on-line journal:

A new global study has found genetic evidence that links endometriosis to a range of other types of chronic pain. Supported by the EU-funded FEMaLe, ERIN and TRENDO projects, this is the largest study of the genetic basis of endometriosis to date, resulting from the collaboration of 25 teams across the globe.