Rochon Paula A, Gurwitz Jerry H, Sykora Kathy, Mamdani Muhammad, Streiner David L, Garfinkel Susan, Normand Sharon-Lise T, Anderson Geoffrey M
Kunin-Lunenfeld Applied Research Unit, Baycrest Centre for Geriatric Care, Toronto, ON, Canada.
BMJ. 2005 Apr 16;330(7496):895-7. doi: 10.1136/bmj.330.7496.895.
Cohort studies can provide valuable information unavailable from randomised trials, but readers need to be alert to possible flaws
队列研究可以提供随机试验无法获得的有价值信息,但读者需要警惕可能存在的缺陷。