The most extensive study and analyses has been based on data from two prospective cohort groups, often referred to as the Harvard Six-City study (Dockery et al.
The Harvard Six-City study is very minor and did not receive much analysis.
mnli hypothesis: The Harvard Six-City study is very minor and did not receive much analysis. premise: The most extensive study and analyses has been based on data from two prospective cohort groups, often referred to as the Harvard Six-City study (Dockery et al.