Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0193-953X(19)30047-4
subscription/membership/fee required W.B. Saunders http://journals.elsevierhealth.com/retrieve/pii/S0193-953X(19)30047-4
subscription/membership/fee required ClinicalKey https://www.clinicalkey.com/content/playBy/pii?v=S0193-953X(19)30047-4