. . . . . . . "LIDDI_resource:SID0901_SID0535_EID4970" . "DDI between nifedipine and fentanyl - Event - Bradycardia."@en . . "DDI between nifedipine and fentanyl - Event - Bradycardia. [LIDDI_resource:SID0901_SID0535_EID4970]"@en . . "Built from FDA public reports using a similar approach than in indicated document"@en . . . "2016-04-06T15:03:36.861139"^^ . . . . "2016-04-06T15:03:36.861150"^^ . .