4231
This dose of Na3 citrate produced no clinical symptoms suggestive of hypocalcaemia in these subjects , even though the use of acid - citrate - dextrose , NIH formula A ( ACD - A ) under identical conditions has been reported to reduce significantly the level of total calcium in serum , and concomitantly increase the number or reactions occurring in donors .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None