I underwent very close scrutiny and intensive investigation.

The longer he waited, the more certain Waverly became that his name was at present undergoing rapid investigation.

His remains were disinterred and underwent scientific investigation from 1958-1960.

It also issued a hold departure order against the 36 individuals, while 15 others released underwent preliminary investigation.

Officials said later that the case would undergo further investigation.

And where, unfortunately for Kelp's devices, the femur was currently undergoing investigation.

His work laboratory is suspected as the source of infection, which is undergoing further investigation.

They are undergoing investigation for use in the treatment of tumors.

In aggressive tumors, three alternatives to surgery are undergoing investigation:

The few remaining humans underwent subtle but exhaustive investigation, though nothing unusual was ever discovered.