Randomization and blinding
The participants were randomized to receive interventions in one of the following orders 1) ABCD, 2) BCDA, 3) CDAB, and 4) DABC, in a ratio of 1:1:1:1 using randomization with a permuted block of four. Study personnel (pharmacists) who were not involved in subject enrollment or data collection performed randomization and blinding. All other personnel and all participants were blinded to the order of the intervention. The pharmacists utilized an online program (sealedenvelope.com) to generate a randomization list (