Gerdes pointed out many instances when contamination could have occurred, including one in which Mazzola did not change her gloves between collection of two samples.
At this year's annual meeting, former President Bill Clinton emphasized the power of transparency and data collection in mobilizing the fight against climate change.
Some people at my university are selling cookies for Red Nose Day tomorrow, I will buy some of those and offload my small change to anyone with a collection box, it all helps.