Creation, characterization, and assignment of opsonic values for a new pneumococcal OPA calibration serum panel (Ewha QC sera panel A) for 13 serotypes. - Burton RL; Kim HW; Lee S; Kim H; Seok JH; Lee SH; Balloch A; Licciardi P; Marimla R; Bae S; Nahm MH; Kim KH (Medicine, 2018)