Visibly nervous, Mr. Zhang denied that any pills he dispensed could cause harm.
It said research had shown they could cause harm to some viewers.
But a parent's intention to be helpful, no matter how innocent, could cause harm.
Doctors should therefore avoid any tests and treatments that could cause harm.
"Within a very narrow scope, it's possible that somebody could cause harm," Mr. Garvey said.
To change their carefully crafted language in ways that could cause harm would be a mistake.
A critical incident is an event that causes harm, or could cause harm if allowed to continue without intervention.
However, in biological applications the leaching of toxic materials from these devices could cause harm to cells or tissue.
Most chemicals can be and are used safely; however, any could cause harm if not used properly.
"In the right hands it can be life-saving, but in the wrong it could cause harm".
To parents: just as you are concerned about whether your children might be taking drugs, be concerned about whether they are taking a supplement that could cause harm.
