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the puff topographies and smoking behavior differs from person to person, even for the same person these factors can vary

*Correspondence: Xin Li [email protected] This article was submitted to Pediatric Immunology, a section of the journal Frontiers in Pediatrics These authors have contributed equally to this work Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

Ogilvie, L