Created at	Source	Raw Value	Validated value
June 25, 2024, noon	usa	* persons with history of hypersensitivity to silver (rashes and other contraindications), * a history of sars-cov-2 infection in the three months prior to the start of the study, any respiratory distress, * and refusal to sign the informed consent.	* persons with history of hypersensitivity to silver (rashes and other contraindications), * a history of sars-cov-2 infection in the three months prior to the start of the study, any respiratory distress, * and refusal to sign the informed consent.
May 22, 2021, 12:32 a.m.	usa	- persons with history of hypersensitivity to silver (rashes and other contraindications), - a history of sars-cov-2 infection in the three months prior to the start of the study, any respiratory distress, - and refusal to sign the informed consent.	- persons with history of hypersensitivity to silver (rashes and other contraindications), - a history of sars-cov-2 infection in the three months prior to the start of the study, any respiratory distress, - and refusal to sign the informed consent.