Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.

Mrs. Stein now was swiftly but surely removing the egg-trays from the incubator.

[…] mounted there, large flat feet clamped down on the leather cover and haunches squared, the rat pondered and pondered, smelling the world, eyes blank and blinkless, wiggling nose thrust into the air […]

The player kicked the football.