human 40 Humans 32 epidermal growth factor receptor 32 Article 28 controlled study 24 genetics 23 female 18 metabolism 18 ErbB Receptors 13 Female 13 adult 13 EGFR protein, human 12 pathology 12 Cell Line, Tumor 11 gene expression 11 tumor cell line 11 aged 10 immunohistochemistry 10 protein expression 10 Lung Neoplasms 9 Protein Kinase Inhibitors 9 human tissue 9 lung tumor 9 male 9 middle aged 9 non small cell lung cancer 9 protein kinase inhibitor 9 Breast Neoplasms 8 Middle Aged 8 Mutation 8