Effect of hypoxia-inducible factor-1 alpha expression on survival in patients with metastatic cervical squamous cell carcinoma treated with first-line chemotherapy and bevacizumab oleh Hasan Cagri Yildirim, Hicran Anik, Deniz Ates Ozdemir, Rashad Ismayilov, Arif Akyildiz, Kerim Cayiroz, Fahri Ceyhan, Oguzalp Kavruk, Deniz Can Guven, Ozturk Ates, Alp Usubutun, Zafer Arik