Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy; Hepatometabolic Unit, Bambino Gesù Children’s Hospital of Rome, Piazza St. Onofrio 4, Rome 00165, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy.

Department of Women’s and Children’s Health, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Umberto I Hospital. Viale del Policlinico 155, Viale Regina Elena 324, Rome 00161, Italy. Electronic address: marina.aloi@uniroma1.it.