The companies said they could not obtain informed consent from children.

"She's just signed her informed consent to be in our study."

Some questioned children's ability to give informed consent in their own right.

Written informed consent was obtained from each patient before the study.

Before the study we obtained informed consent from all subjects.

They also related stories about "lack of free, prior and informed consent for local people".

Informed consent was sought from parents, who were given an information sheet.

In addition, customers must provide informed consent before any company can legally use that data.

Informed consent and education about all options, including doing nothing, is imperative.

Informed consent was obtained from the patients' next of kin.