Description  Claims  Cited references 

WO9911202A   [0001] 
US3400176A   [0014] 
EP0388575A   [0015] 

Pure Appl. Chem.   [0014] 
Metalated methylendiphosphonate esters, preparation, characterization and synthetic applications   [0014] 
J. Biomed. Mater. Res.   [0015]  [0018]