[1
]
a Cubist Pharmaceuticals , Lexington , MA , USA .
[2
]
b Pacific Economics Research, LLC , Bellevue , WA , USA .
[3
]
c Massachusetts General Hospital , Boston , MA , USA .
[4
]
d AbbVie Inc . , North Chicago , IL , USA .
[5
]
e RTI Health Solutions, Research Triangle Park , NC , USA , and.
[6
]
f Center for Clinical and Genetic Economics, Duke Clinical Research Institute , Durham
, NC , USA.