PLANO, Texas--(BUSINESS WIRE)--Spok, Inc., a wholly owned subsidiary of Spok Holdings, Inc. (NASDAQ: SPOK) and a global leader in healthcare communications, released the results of its 15th annual survey assessing how clinical communication is handled in U.S. healthcare organizations, along with the trends and challenges shaping this critical capability. With input from executives, physicians, nurses, IT personnel, contact center representatives, and others, this year's report reveals a steady.