Testing for exon 19 deletions was performed by length analysis of fluorescently labeled polymerase chain reaction (PCR) products, and exon 21 L858R mutations were tested with a PCR Taqman assay.

• 通过分析荧光标记的多聚酶链反应产物长度检测19号外显子删除。并通过多聚酶链反应分析检测21号外显子L858R变异。