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๐ SIMILAR VOLUMES
## Abstract Analysis of the Vorontsova calculation of vicinal coupling constants in terms of angular and chemical shift dependence indicates some serious inconsistencies in this equation.
## Abstract The research on pangamic acid (vitamin B~15~) has been conducted by specialists in many fields of science for a long time. This, however, has not put an end to controversies around the problem of its therapeutic effect. The solution to the basic problems, i.e. defining the compound stru