Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0030-6665(07)00060-6
subscription/membership/fee required W.B. Saunders http://journals.elsevierhealth.com/retrieve/pii/S0030-6665(07)00060-6
subscription/membership/fee required ClinicalKey https://www.clinicalkey.com/content/playBy/pii?v=S0030-6665(07)00060-6