1.   But he said the study methods, specifically requiring anonymity of the teachers, left room for an overestimation of the number of teachers who bully.

2.   For legal and ethical reasons, the network requires anonymity for the first year after a transplant.

3.   The health official required anonymity because he feared loss of his job if his name was attached to his expert medical opinion in print.

4.   The official, who required anonymity, said the joint venture would produce three models of GM vehicles.