Design of a group-randomized Streptococcus pneumoniae vaccine trial.
Moulton LH, O'Brien KL, Kohberger R, Chang I, Reid R, Weatherholtz R, Hackell JG, Siber GR, Santosham M.
Moulton LH, et al.
Control Clin Trials. 2001 Aug;22(4):438-52. doi: 10.1016/s0197-2456(01)00132-5.
Control Clin Trials. 2001.
PMID: 11514043
Clinical Trial.