Comparing cold-air analgesia, systemically administered analgesia and scalp nerve blocks for pain management during photodynamic therapy for actinic keratosis of the scalp presenting as field cancerization: a randomized controlled trial

2015 ◽  
Vol 173 (1) ◽  
pp. 192-200 ◽  
Author(s):  
A. Klein ◽  
S. Karrer ◽  
C. Horner ◽  
A. Werner ◽  
J. Heinlin ◽  
...  
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