Rickets in children or osteoporosis in adults can be minimized though dietary supplementation with which of the following?

Which of the following may result in a failure of communication between a paramedic and a patient?

A) External distractions B) Prejudice C) Lack of privacy D) All of the above

Which sampling technique divides the population by some factor?

A) ?Convenience sampling B) ?Simple sampling C) ?Systematic random sampling D) ?Stratified random sampling