Psychological Aspects of Treatment with Intragastric Balloon for Management of Obesity: A Systematic Review of the Literature oleh Giada Pietrabissa, Vanessa Bertuzzi, Susan Simpson, Anna Guerrini Usubini, Roberto Cattivelli, Simona Bertoli, Enrico Mozzi, Giancarlo Roviaro, Gianluca Castelnuovo, Enrico Molinari