| Query | User |
|---|---|
| blood oxygen level | entered by user 6054399 |
| blood oxygen levels | entered by user 4932682 |
| life span of person with severe copd | entered by user 293524 |
| lung foundation | entered by user 4180203 |
| normal blood oxygen levels | entered by user 4932682 |
| normal blood oxygen levels | entered by user ditto |
| oxygen level | entered by user 4379332 |
| oxygen level | entered by user ditto |
| oxygen levels | entered by user 1257836 |