This is the LIMIT option screen. Click on the set that you want to work with. Notice here that set #3 is selected. Now, scroll down the screen to the "Publication Types" limit option. From the list of available publication type limits, click on "Randomized Controlled Trials." Then click on the box. Keep in mind that it is possible to select more than one limit option from each category. For example, if you wanted to select more than one "publication type" hold down the CTRL key on your keyboard as you make your selections.

Select # Search History Results 1 exp *DIABETES MELLITUS/ 47707 2 exp *Blood Glucose/ 5409 3 1 and 2 2539

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Review Articles	Abstracts	Ovid Full Text Available
Latest Update	Animals	Male
Female	Core Clinical Journals <AIM>	Evidence Based Medicine Reviews
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Publication Year -19651966196719711972197319761978197919801982198319851987199019911992199319941995199619971998199920002001200220032004--20042003200220012000199919981997199619951994199319921991199019871985198319821980197919781976197319721971196719661965

Subject Subsets -AIDSBioethicsCancerComplementary MedicineHistory of MedicineSpace Life SciencesSystematic ReviewsToxicology	Clinical Queries -Therapy <sensitivity>Therapy <specificity>Therapy <optimized>Diagnosis <sensitivity>Diagnosis <specificity>Diagnosis <optimized>Prognosis <sensitivity>Prognosis <specificity>Prognosis <optimized>Reviews <sensitivity>Reviews <specificity>Reviews <optimized>Clinical Prediction Guides <sensitivity>Clinical Prediction Guides <specificity>Clinical Prediction Guides <optimized>Qualitative Studies <sensitivity>Qualitative Studies <specificity>Qualitative Studies <optimized>Etiology <sensitivity>Etiology <specificity>Etiology <optimized>Costs <sensitivity>Costs <specificity>Costs <optimized>Economics <sensitivity>Economics <specificity>Economics <optimized>
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Age Groups -All Infant <birth to 23 months>All Child <0 to 18 years>All Adult <19 plus years>Newborn Infant <birth to 1 month>Infant <1 to 23 months>Preschool Child <2 to 5 years>Child <6 to 12 years>Adolescent <13 to 18 years>Adult <19 to 44 years>Middle Age <45 to 64 years>Middle Aged <45 plus years>Aging <65 to 79 years>All Aged <65 and Over>Aged <80 and Over>	Publication Types -AddressesBibliographyBiographyCase ReportsClassical ArticleClinical ConferenceClinical TrialClinical Trial, Phase IClinical Trial, Phase IIClinical Trial, Phase IIIClinical Trial, Phase IVCommentCongressesConsensus Development ConferenceConsensus Development Conference, NIHControlled Clinical TrialCorrected and Republished ArticleDictionaryDirectoryDuplicate PublicationEditorialEvaluation StudiesFestschriftGovernment PublicationsGuidelineHistorical ArticleInterviewJournal ArticleLecturesLegal CasesLegislationLetterMeta AnalysisMulticenter StudyNewsNewspaper ArticleOverallPatient Education HandoutPeriodical IndexPractice GuidelinePublished ErratumRandomized Controlled TrialRetraction of PublicationRetracted PublicationReviewReview, AcademicReview LiteratureReview, MulticaseReview of Reported CasesReview, TutorialScientific Integrity ReviewTechnical ReportTwin StudyValidation Studies
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