A Global Health Survey of People Who Vape but Never Smoked: Protocol for the VERITAS (Vaping Effects: Real-World International Surveillance) Study oleh Jeffrey Zamora Goicoechea, Allison Boughner, Juan José Cirion Lee, Aman Mahajan, Kurt Yeo, Maris Sproga, Tasmin Patel, Claudio Saitta, Christopher Russell, Michael Coughlan, Pasquale Caponnetto, Riccardo Polosa