<qa>  What is the term for tyrosine kinase?- Patients who have received hydroxyurea alone or have previously received non-cytotoxic therapies for myelodysplastic syndromes MDS or myeloproliferative neoplasms MPN e.g., thalidomide or lenalidomide, 5-azacytidine or decitabine, histone deacetylase inhibitors, low-dose Cytoxan, tyrosine kinase or dual tyrosine kinase TKSRC proto-oncogene, non-receptor tyrosine kinase src inhibitors will be allowed 