The Establishment and Comparison on the HPV Type 16 E7-Specific Immunologic Response between Normal Population, Patients with CIN and Patients with Cervical Cancer (II) = 正常人、子宮頸內皮細胞X生瘤和子宮頸癌病人對人類乳突病毒第十六型的E7特異免疫反應之建立及比較 (II)