35 Advertising agencies specializing in the marketing, promotion and development of business for healthcare providers, including but not limited to, physicians, surgeons and medical practices, healthcare facilities, including, but not limited to, ambulatory surgery centers, hospitals, medical offices, practices and clinics, and other healthcare related businesses.; Marketing consulting, namely, the marketing, promotion and development of business for healthcare providers, including but not limited to physicians, surgeons and medical practices, healthcare facilities, including but not limited to ambulatory surgery centers, hospitals, medical offices, practices and clinics, and other healthcare related businesses