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Non-Current Deferred liabilities
12 Months Ended
Dec. 31, 2020
Non-Current Deferred liabilities [Abstract]  
Non-Current Deferred liabilities
19.
Non-Current Deferred liabilities

  
2020
£’000
  
2019
£’000
 
Deferred revenue
  
24,868
   
47,961
 
   
24,868
   
47,961
 

Deferred revenue is in respect of the upfront fee and development milestones payments received from collaboration agreements in advance of services performed by the Group (see Note 2).