The difference between concealment and blinding in clinical trials and why both are important. A reply to Garg and Mickenautsch, BMC Medical Research Methodology (2022) 22:17. - Lyden, Patrick; Broderick, Joseph; Grotta, James; Kwiatkowski, Thomas; Levine, Steven; Frankel, Michael; Haley, E. Clarke; Tilley, Barbara (BMC Medical Research Methodology, 2023)