1. Detection of aberrant promoter hypermethylation of tumor suppressor genes in serum DNA from non-small cell lung cancer patients;Esteller;Cancer Res.,1999
2. Detection of aberrant p16 methylation in the plasma and serum of liver cancer patients;Wong;Cancer Res.,1999
3. Promoter hypermethylation patterns of p16, O6-methylguanine-DNA-methyltransferase, and death-associated protein kinase in tumors and saliva of head and neck cancer patients;Losas;Cancer Res.,2001
4. Gene promoter hypermethylation in tumors and serum of head and neck cancer patients;Sanchez-Cespedes;Cancer Res.,2000