Answer:
Questionnaires
Explanation:
They allow both government and outside researchers to obtain estimates of a variety of health related topic or issue among either the entire nation or specific demographic group of the population.
And the survey design is cross section.
Ensuring the patients safety
Guy/girl is correct, brainliest her or him
Answers: The study included 485 infants who died of SIDS in New Zealand from 1987 to 1990 and 1,800 infants who did not die of SIDS. Many variables were examined including socioeconomic status, circumstances surrounding the pregnancy, the infant's sex, birth weight, length of pregnancy, and the breastfeeding and smoking practices of the mother.
