The effect of BDP was greatly dependent on the presence of Zn++ ions in the preparation , since the augmenting effect was abolished if BDP did not contain zinc .
the effect of bdp was greatly dependent on the presence of zn++ ions in the preparation , since the augmenting effect was abolished if bdp did not contain zinc .
O O O B-other_name O O O O O O O B-atom I-atom O O O O O O O O O O O B-other_name O O O B-atom O