8215
Initially, four novel, frequently occurring sequence variants were identified that associated with two common haplotypes that were described previously.
 ( DNA: sequence variants, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: sequence variants, None) 