Article History
Received: 14 July 2020
Accepted: 23 July 2020
First Online: 30 July 2020
Compliance with ethical standards
:
: RP is full-time employee at the University of Catania, Italy. In relation to the topic of communicable disease, RP has received research funding from Alfa-Wassermann, manufacturer of broad-spectrum antibiotics. RP is also the founder of the Center of Excellence for the acceleration of Harm Reduction at the University of Catania (CoEHAR), which has received a grant from Foundation for a Smoke-Free World to develop and carry out 8 research projects and scientific advisor for LIAF, Lega Italiana Anti Fumo (Italian acronym for Italian Anti-Smoking League). MS and DP declare no conflicts of interest.
: This article does not contain any studies with human or animal subjects performed by any of the authors.
: Informed consent was not required for this type of study.
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