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Medical tests
… used to collect samples of tissue from the stomach and the first part of the small intestine. The tissue samples are … used to collect samples of tissue from the stomach and the first part of the small intestine. The tissue samples are …
Medical tests
… You will use the container to collect your urine. When you first get up, you empty your bladder. But don't save this … You will use the container to collect your urine. When you first get up, you empty your bladder. But don't save this …