You are provided the following set of data: 20, 21, 28, 42, 43, 43, 50 Which value represents the median of this data set?

The application of communication and information to medical practice, research, and education is called

A) telemedicine. B) informatics. C) clearinghouse. D) sanctions.

Vascular changes during gingivitis occur in the

A) oral epithelium. B) sulcular epithelium. C) lamina propria. D) lamina dura. E) periodontal ligament.