This invention provides six new cell lines which were established in {HEAD ~ continuous culture} from {TAIL ~ embryonic tissues} of ticks  
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This invention provides six new cell lines which were established in { HEAD ~ continuous culture } from { TAIL ~ embryonic tissues } of ticks
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH