. 2024 Feb 23;13:e53222. doi: 10.2196/53222
©Gianluca Conte, Sebastiano Antonio Pacino, Salvatore Urso, Doris Greiling, Pasquale Caponnetto, Eugenio Pedullà, Luigi Generali, Ugo Consolo, Vittorio Checchi, Stefan Gospodaru, Gheorghe Bordeniuc, Valeriu Fala, Jan Kowalski, Maciej Nowak, Renata Górska, Amaliya Amaliya, Iain Chapple, Michael Milward, Robert Maclure, Gianna Maria Nardi, Riccardo Polosa. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 23.02.2024.
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Figure 2.
Study flow diagram of study participants. C-F NA: combustion-free nicotine alternatives.