1 Division of Pulmonary Medicine (NS), St. Agnes Hosipital, Baltimore, MD 21229, United States; Respiratory Unit (FDG), Cremona Hospital, Cremona, Italy. Electronic address: [email protected].
2 Division of Pulmonary Medicine (NS), St. Agnes Hosipital, Baltimore, MD 21229, United States; Respiratory Unit (FDG), Cremona Hospital, Cremona, Italy.