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Topik: case-control studies
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case-control studies
3
cancer
2
diet
2
micronutrient
2
risk factors
1
Germany
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1
Moldova
1
N-nitroso compounds
1
ambulatory care
1
asthma
1
brain tumours
1
breast neoplasms
1
bronchitis
1
caffeine
1
care
1
coffee
1
colorectal cancer
1
confounding
1
controls
1
cross-infection
1
cryptochidism
1
diabetes mellitus
1
education
1
environmental exposures
1
epidemiologic methods
1
friends
1
health service
1
hepatitis B
1
infection control
1
larynx neoplasms
1
logistic regression
1
lung neoplasms
1
nutrition epidemiology
1
oral neoplasms
1
pneumonia
1
pulmonary
1
pulmonary emphysema
1
socioeconomic status
1
sterilization
1
tea
1
testicular neoplasms
1
tuberculosis
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