Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0022-3476(08)00962-1
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19324223.ui
subscription/membership/fee required ClinicalKey https://www.clinicalkey.com/content/playBy/pii?v=S0022-3476(08)00962-1