TableĀ 1

Countries and centres that provided information for this study

CountrySites/countrySite/region represented
Belgium1Belgium
Denmark1Copenhagen
France1Paris
Germany1Central Germany
Greece1Crete
Hungary1Southeast Hungary
Italy4Tuscany (2), Veneto, Lazio
Spain13Bizkaia, Andalucia (2), Madrid, Catalonia (3), Balearic Islands, Asturias, Jaen, Valencia, Zaragoza, Granada
Sweden2Stockholm, Lund
The Netherlands2Leiden, Amsterdam
Turkey1Istanbul
UK1London