- Retrovirus-associated deoxyribonucleic acid (DNA) sequence (RAS) wild-type; v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) testing must be completed, with full KRAS and neuroblastoma RAS viral (v-ras) oncogene homolog (NRAS) testing strongly advised; the presence of known mutations in KRAS or NRAS is exclusionary; primary tumor or metastatic tumor may be tested; (note: in the case of multiple genomic evaluations with conflicting results - e.g. KRAS mutant in one sample, but wild-type in another - the patient may be included as RAS wild-type, if clinically justified, after review with the principal investigator [PI])