Fig. 5From: Primary clear cell sarcoma of the femur: a unique case with RT-PCR and direct sequencing confirmation of EWSR1/ATF1 fusion geneReverse transcription-polymerase chain reaction using EWSR1/ATF1 primer (81 base pairs). M: molecular size marker; N: negative control (distilled water); PGK: phosphoglycerate kinase, 247 base pairs; PBGD: porphobilinogen deaminase, 127 base pairs; E/A: EWSR1/ATF1 primer, 81 base pairsBack to article page