406130 RT reverse transcriptase 8547 3926580 RT-PCR reverse transcription-PCR 3811 1576505 RTs reverse transcriptases 178 3916982 RTase reverse transcriptase 27 1878775 RT/PCR reverse transcriptase PCR 10 1568957 RRT reverse transcription 5 1569097 rRT reverse transcriptase 4 3430545 RTIs reverse transcriptase 3 393241 RI reverse transcriptase 2 3919652 rTERT reverse transcriptase 2 1575987 RTP reverse transcriptase 1