Table 1.

List of selected European studies on nRV.

Author	Year of Publication	Study design	Country	Ref
Gleizes et al.	2006	Review	ES-FR-GB-IT-PL	21
PROTECT	2006	Review	EU	11
Johansen et al.	2008	RS	SW	22
Stefkovicova et al.	2008	RS	SK	23
Forster et al.	2009	PS	ES-DE-FR-GB-IT	24
Gil-Prieto et al.	2009	RS	ES	25
Muhsen et al.	2009	PS	IL	26
Waisbourd-Zinman et al.	2009	PS	IL	27
Wildi-Runge et al.	2009	RS	CH	28
Cunliffe NA et al.	2010	PS	GB	29
Festini et al.	2010	PS	IT	30
Gutiérrez-Gimeno et al.	2010	PS	ES	31
García-Basteiro et al.	2011	RS	ES	32
Panatto et al.	2011	RS	IT	33
Bruijning-Verhagen et al.	2012	Review	West EU	34
Ogilvie et al.	2012	Review	West EU	18
Nitsch-Osuch et al.	2013	RS	PL	35
Zlamy et al.	2013	RS	AU	20
Konstantopoulos et al.	2013	PS	GR	36
Anca et al.	2014	PS	RO	37
Rinder et al.	2014	PS	SW	38
Stefcovicova et al.	2015	PS	SK	39
Redondo-Gonzalez	2015	RS	ES	40

Legend:

PS = Prospective Study

RS = Retrospective Study

AU = Austria

CH = Switzerland

DE = Germany

ES = Spain

EU = Europe

FR = France

GB = Great Britain

GR = Greece

IL = Israel

IT = Italy

PL = Poland

RO=Romania

SK = Slovakia

SW = Sweden