RT Journal Article SR Electronic T1 Hypothesis to explain the severe form of COVID-19 in Northern Italy JF BMJ Global Health JO BMJ Global Health FD BMJ Publishing Group Ltd SP e002564 DO 10.1136/bmjgh-2020-002564 VO 5 IS 6 A1 Luca Cegolon A1 Jennifer Pichierri A1 Giuseppe Mastrangelo A1 Sandro Cinquetti A1 Giovanni Sotgiu A1 Saverio Bellizzi A1 Giuseppe Pichierri YR 2020 UL http://gh.bmj.com/content/5/6/e002564.abstract AB