. . . . . . . "LIDDI_resource:SID2910_SID2504_EID4964" . "DDI between sildenafil and topotecan - Event - Serotonin syndrome."@en . . "DDI between sildenafil and topotecan - Event - Serotonin syndrome. [LIDDI_resource:SID2910_SID2504_EID4964]"@en . . "Webcrawled and annotated using indicated method"@en . . . "2016-04-06T15:04:56.959231"^^ . . . . "2016-04-06T15:04:56.959248"^^ . .