“…Hupkens et al (72) 3 (Belgium, Netherlands, Germany) FFQ X (128) I.Family Project (50,73,74) 8 (Belgium, Cyprus, Estonia, Germany, Hungary, Italy, Spain, Sweden) Diet questionnaire (FFQ) which was included as part of the parent questionnaire X Online 24-HDR (SACANA) IHBS (75) 17 (Austria, Denmark, England, Finland, France, Germany, Greece, Iceland, Ireland, Netherlands, Norway, Poland, Portugal, Scotland, Spain, Sweden, Switzerland) FFQ X IMMIDIET (76) 3 (Italy, Belgium, England) EPIC-Italian FFQ X (39,129) EPIC-UK FFQ Specifically developed Belgian FFQ Kolarzyk et al (48) 4 (Poland, Belarus, Russia, Lithuania) FFQ X LiVicordia (77) 2 (Lithuania, Sweden) 24-HDR LLH (71) 8 (Armenia, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Russia, Ukraine) FFQ MEDIS (78) 2 (Cyprus, Greece) FFQ X (138) MGSD (79) 6 (Greece, Italy, Algeria, Bulgaria, Egypt, Yugoslavia (only diabetics in Yugoslavia)) Dietary history method using questionnaire X (79) NORBAGREEN (41,80) 8 (Norway, Denmark, Sweden, Finland, Latvia, Lithuania, Estonia, Iceland) FFQ X (80) O'Neill et al (82) 5 (UK, Republic of Ireland, Spain, France, Netherlands) FFQ X Parfitt et al (83) 2 (England, Italy) 5-7 d record PRIME (84) 2 (Northern Ireland, France) FFQ X PRO GREENS (85) 10 (Austria, Belgium, Denmark, Iceland, Netherlands, Norway, Portugal, Spain, Sweden, Finland)…”