Unlocked ist ein hybrides OA-Journal-Programm von BMJ:
A particular feature of Unlocked is its two-tier fee system (either £1,200/$2,220/€1,775 or £1,700/$3,145/€2,515 depending on which BMJ journal an author submits their article to) …
BMJ Journals will deposit all Unlocked articles in PubMed Central immediately on publication….