Overcoming challenges to data quality in the ASPREE clinical trial oleh Jessica E. Lockery, Taya A. Collyer, Christopher M. Reid, Michael E. Ernst, David Gilbertson, Nino Hay, Brenda Kirpach, John J. McNeil, Mark R. Nelson, Suzanne G. Orchard, Kunnapoj Pruksawongsin, Raj C. Shah, Rory Wolfe, Robyn L. Woods, on behalf of the ASPREE Investigator Group