1.   So one night I collected samples from all five and went home for a serious tasting.

2.   They all died within months of each other, and serum samples were collected and frozen.

3.   Whenever a patient returned for a clinic visit, a urine sample was collected and was analyzed for ethanol.

4.   They collect blood samples for analysis at a national laboratory.

5.   We collected soil samples from several areas on the site.

6.   After collecting baseline samples for two hours, injection of neuropeptide Y or control into the lateral ventricle was performed using a stereotactic instrument.

7.   Blood samples were collected into chilled tubes containing sodium EDTA and aprotinin.