27421
Conclusion : It is concluded that 1 / x ( 2 ) weighting generally produces results that meet both theoretical and regulatory requirements , and that use of single , rather than duplicate , calibrators can result in misleading statistics at the LLOQ .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None