EGFR and squamous cell carcinoma: The types of cancers that were investigated included breast cancer (n=8), lung cancer (n=4), ovarian cancer (n=4), glioblastoma multiforme (n=3) colorectal cancer (n=2) melanoma (n=2), lymphoma (n= 2), head and neck cancer (n=1), prostate cancer (n=1), multiple myeloma (n=1), epidermoid carcinoma (n=1), human epithelial cancers (n=1) and EGFR signaling abnormal cancers (n=2).