PhiC31 integrase can improve the efficiency of different construct designs for monoclonal antibody expression in CHO cells. - Ahmadi, Maryam; Mahboudi, Fereidoun; Ahmadi, Samira; Ebadat, Saeedeh; Nematpour, Fatemeh; Akbari Eidgahi, Mohammad Reza; Davami, Fatemeh (Protein Expression & Purification, 2017)