Engineering a stable CHO cell line for the expression of a MERS-coronavirus vaccine antigen by Nyon, Mun Peak, Du, Lanying, Tseng, Chien Te Kent, Seid, Christopher A., Pollet, Jeroen, Naceanceno, Kevin S., Agrawal, Anurodh, Algaissi, Abdullah, Peng, Bi Hung, Tai, Wanbo, Jiang, Shibo, Bottazzi, Maria Elena, Strych, Ulrich, Hotez, Peter J.