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[1]CurrentPatentAssignee:PFIZERINC-DE2201668,1972,A1[Chem.Abstr.,1973,vol.78,#71706][Chem.Abstr.,1973,vol.78,#71706]
[1]CurrentPatentAssignee:PFIZERINC-DE2201668,1972,A1[Chem.Abstr.,1973,vol.78,#71706][Chem.Abstr.,1973,vol.78,#71706]
[1]CurrentPatentAssignee:NOVARTISAG;Novartis(w/oSandoz)-CH549337,1974,A[Chem.Abstr.,1972,vol.77,#126259][Chem.Abstr.,1972,vol.77,#126259]
[1]CurrentPatentAssignee:PFIZERINC-DE2201668,1972,A1[Chem.Abstr.,1973,vol.78,#71706][Chem.Abstr.,1973,vol.78,#71706]