2.9 Randomisation
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BLIND
Randomisation sequence were carried out by a statistician through simple randomization with allocation ratio of 1:1 by a computer-generated list (Random number Table). The enrollment of the subjects were done as per randomization sequence with allocation ratio of 1:1 according to the computer generated chart. The allocation couldn’t be concealed from the investigators, given the unique situation where the investigators had to recruit the participants in the COVID wards on the spot upon obtaining written or recorded video consent The investigators strictly adhered to the sequence prescribed in the randomization table and to avoid the bias in the selection of the participants, this procedure was monitored by the third party which was not involved in the study. This allocation was, however, concealed from the participants, as it was a single blind design. The investigators’ team also enrolled the study participants.