Fig. 4From: Recruitment of pre-dementia participants: main enrollment barriers in a longitudinal amyloid-PET studyAbsolute and relative frequency of reasons not to enroll in the AMYPAD-PNHS for all PCs. Research PCs are EPAD-LCS, ALFA + , F-PACK, EMIF-AD 60 +  + ; Clinical PCs are UCL-2010–412, EMIF-AD 90 + , AMYPAD DPMS, Microbiota, and FACEHBI. Abbreviations: 60 +  +  = EMIF-AD 60 +  + /TWINS; UCL = UCL-2010–412; DPMS = AMYPAD DPMS; 90 +  = EMIF-AD 90 + Back to article page