Evaluation of the polarographic technique for assay of the viability of freeze-dried BCG vaccine: II. Viability of the vaccine assessed by polarography , Warburg respirometry and colony counting - Malucelli, M T C; Niero, Rinaldo; Lucchiari, P H; Souza, M D C; Bruzzo, D; Alves, R C B; Miguel, Omar; Bacila, M (Vaccine, 1995)