权威例句
The retrieval of randomized clinical trials in liver disease from the medical literature. A comparison of MEDLARS and manual methodsEvaluation of the MEDLARS Demand Search ServiceMedical Subject Headings Used to Search the Biomedical LiteratureMedical Subject Headings (MeSH)Safety of nifedipine in patients with hypertension: a meta-analysisMethod development for the analysis of organophosphate and pyrethroid insecticides at low parts per trillion levels in water.Asylums: Essays on the Social Situation of Mental Patients and other InmatesProtecting Adolescents From HarmLow-Density Lipoprotein Subclass Patterns and Risk of Myocardial InfarctionScience in War