Fill in the type of research methods in the following questions. A total of 100 patients with diabetes were recruited and 110 controls participated in the same study. Dietary intakes were estimated by 24- hour recalls. 300 children have been recruited, which have been planned to be followed up annually for 5 years. Their diet was reported by their parents by food diary, and their body weight and height were measured yearly with standardized instruments. After 5 years, researchers will observe who have become obese. Agroupofsubjectswererecruited,andresearchersdeterminewhether they have taken fish oil and measured their heartbeat rate currently. ___________________________________________________________ d. 200 participants who met the eligible criteria were recruited and randomly assigned into the experimental (use olive oil only to cook) and control group. The risk of development of cardiovascular disease were measured.
1. Fill in the type of research methods in the following questions.
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A total of 100 patients with diabetes were recruited and 110 controls participated in the same study. Dietary intakes were estimated by 24- hour recalls.
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300 children have been recruited, which have been planned to be followed up annually for 5 years. Their diet was reported by their parents by food diary, and their body weight and height were measured yearly with standardized instruments. After 5 years, researchers will observe who have become obese.
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Agroupofsubjectswererecruited,andresearchersdeterminewhether they have taken fish oil and measured their heartbeat rate currently.
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d. 200 participants who met the eligible criteria were recruited and randomly assigned into the experimental (use olive oil only to cook) and control group. The risk of development of cardiovascular disease were measured.
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