Mae’r Adolygiad wedi casglu ynghyd 764 o eitemau gwyddonol o bob cwr o’r byd. Maent, ar y cyfan, wedi cael eu hadolygu gan gymheiriaid o 2007 ymlaen, pan gafodd yr Adroddiad diwethaf ei gyhoeddi gan Lywodraeth y DU.
The Review collated 764 scientific items from across the world. In the main, they have been peer reviewed from 2007 onwards, which is when the last UK Government Report was published.