21.   As a husband, he fulfilled the model role of an attentive and loving spouse.

22.   As patients are sent home sooner and sooner, families are thrown into the role of caregivers.

23.   As the supervisor becomes a group leader, however, the role of employees changes also.

24.   As the trend toward a flatter management structure and worker empowerment continues, production managers will increasingly perform the role of facilitators.

25.   At the same time, the complementary role of oral culture is encouraged in a myriad of ways.

26.   At the time there was little understanding of the role of folic acid in the normal working of the body.

27.   Attention focuses on the role of foreign workers in the emerging oil industry.

28.   Balancing the dual roles of minister to the world and shepherd to his own flock has taken its toll.

29.   Bronson will return to the role of Paul Kersey to take on the Mafia in the latest sequel to the vigilante saga.