The researchers must advertise the study and explain it at meetings.

The researchers could not explain how such low alcohol exposure might have an impact on development.

The researchers cannot explain what, exactly, these grand old doyennes are doing.

And zinc appears to have some antiviral effect, although researchers can't explain why.

The researchers didn't explain how this could have happened at scale on a pre-biotic Earth!

Ketamine affects this system and may have potential as a new treatment, the researchers explain.

Serious drug errors were those that injured, or had the potential to injure, patients, the researchers explained.

The researchers explain that it is not a biological but more of a social effect.

The researchers could not explain why androstenedione produced this effect.