Once the litter box is in the bag, tie the drawstrings, leaving a gap so air can escape as you pat it down. The bag should be ...

"I wanted to create a simple and sanitary way to keep the hand clear of the urine stream when collecting a urine sample," ...

To estimate pesticide exposure, urine samples are often needed to analyze pesticide metabolites. However, this is difficult for children wearing diapers because simple and feasible techniques suitable ...