8756
METHODS : A total of 15 pigs were randomised to ligation of left marginal arteries ( infarction group , n = 5 ) , to TMLR of the left lateral wall using a holmium : yttrium - aluminium garnet ( Ho : YAG ) laser ( laser group , n = 5 ) , and to both ( laser - infarction group , n = 5 ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None