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An interview with the inventor of the electronic cigarette, Herbert A

Now that's on here somewhere, here it is, Dresden

First, although MMG-SEM is valuable for clustering groups based on relations between latent variables, it is not yet capable of integrating observed items (such as age, gender, and education) into the clustering process

As nic salt particles are larger than freebase nicotine particles, as well as having an ionic charge, they have a harder time crossing the lung/blood barrier so it is more likely that a higher volume of nic salt reaches the lungs than with freebase nicotine