In copyright
It is possible this item is protected by copyright and/or related rights. You may be able to use this digital item under a copyright exception, otherwise you need to obtain permission from the rights-holder(s). These may be identified elsewhere in the catalogue record. Read more about copyright.
Read further guidance on copyright exceptions in the UK.
Credit
'The effect of benzedrine on intelligence scores', with JM Blackburn, <i>The Lancet</i>: ts drafts and reprint. In copyright. Source: Wellcome Collection.