Continuing inspite of difficulties, being determined, and overcoming obstacles are characteristics of a person who is ________.

A ________ is undertaken first to find unforeseen obstacles to data gathering during participation in a research study

A) null hypothesis B) pilot trial C) principal investigation D) data analysis

Which field locator provides the NPI number of the service provider?

a. 56 b. 57 c. 58 d. 60