Can a subject who returns a negative result one month after returning a positive result be said to have abstained completely in the intervening weeks?
Related Questions
- Can a subject who returns a negative result one month after returning a positive result be said to have abstained completely in the intervening weeks?
- Do 4 month expired pregnancy tests give false results if so do they give false positive or false negative?
- Why is it said that AB positive or negative blood type people are aliens from another planet?
