Virus like particles vaccine compositions comprising HPV L1 proteins or {HEAD ~ their functional relatives} produced by using {TAIL ~ those modified genes} 
Virus like particles vaccine compositions comprising HPV L1 proteins or { HEAD ~ their functional relatives } produced by using { TAIL ~ those modified genes }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL