1 Underlying principles Four principles therefore underlie randomised prevention trials.

2 The results of randomised controlled trials are less encouraging.

3 No randomised study has ever shown that these negative aspects of childbirth are a result of epidural analgesia.

4 Does the quality of reports of randomised trials affect estimates of intervention efficacy reported in meta-analyses?

5 It should be the objective of a randomised trial to estimate the magnitude of an effect, not simply its presence.

6 Six prospective randomised trials have evaluated the efficacy of elemental diets in Crohn's disease.

7 A randomised controlled trial comparing prompted care with continuing hospital clinic care was undertaken.

8 This randomised comparison is consistent with subgroup data from ISIS-2.

9 Unfortunately, none of the published randomised trials have shown that medical treatment improves fertility.

10 Thirty two of the remaining patients were randomised to receive cisapride, and 34 to receive placebo.

11 In two randomised prospective studies, however, no advantage of preoperative radiation therapy could be shown.

12 Four prospective randomised trials have investigated the role of polymeric formulas in Crohn's disease.

13 There are no valid randomised comparative studies of surveillance versus treatment.

14 These results were evaluated in a prospective,[] randomised and controlled study.

15 After this blinded choice, patients were randomised again to receive air or oxygen.

16 Twenty two patients were randomised to receive elemental diet and 20 to receive prednisolone.

17 Other studies that were not randomised failed to show adverse effects on the baby.

18 Patients were randomised at the time of endoscopy or within 12 hours after fulfilling the inclusion criteria.

19 We included data from all comparable randomised controlled trials, which enables smaller effects to be detected or excluded with confidence.

20 To further clarify the benefit of the combination of topical techniques for tumour destruction and external beam radiotherapy randomised studies are required.

21 Early detection regimens should not be applied unless benefit is shown in terms of reduced mortality from cancer in randomised prospective trials.

22 The figure illustrates the cumulative ulcer free survival curves of patients randomised to each drug.

23 The optimal regimen is not clearly established and should be studied in a randomised trial.

24 Main outcome measures - Improvement in mean scores on Hamilton depression rating scale for 55 randomised controlled trials.

25 This drug is currently being evaluated in large multicentre randomised controlled trials.

26 Symptomatic recurrence in this study was particularly common in the group randomised to cisapride, not placebo.

27 The effectiveness of medical interventions is best evaluated by a systematic analysis of randomised controlled trials.

28 Maberly and I reported results in inpatients with asthma and are doing an outpatient double blind randomised trial of neutralisation.

29 They base their recommendations on an analysis of 19 randomised controlled trials that examined the effectiveness of surgical interventions for glue ear.

30 To evaluate our first impressions we examined transmission electron microscopy findings in 40 H pylori positive cases out of 94 randomised cases.

31 These encouraging results in pilot studies required confirmation in prospective and randomised trials.

32 The presumption of benefit bedevils much of the ethical thinking affecting proposed randomised trials.

33 This randomised controlled study began in August 1979, and recruitment continued until June 1986.

34 Addition of infliximab compared with addition of sulfasalazine and hydroxychloroquine to methotrexate in patients with early rheumatoid arthritis (Swefot trial): 1-year results of a randomised trial.

35 There is no selection bias, she observes, since this is a randomised trial.

36 Efficacy of pentavalent rotavirus vaccine against severe rotavirus gastroenteritis in infants in developing countries in Asia: a randomised, double-blind, placebo-controlled trial.

37 Nifurtimox-eflornithine combination therapy for second-stage African Trypanosoma brucei gambiense trypanosomiasis: a multicentre, randomised, phase III, non-inferiority trial.

38 A randomised clinical trial was carried out to see whether infant feeding bottle design affects "infant behaviour".

39 This study is registered with the International Standard Randomised Trial number 34123170.

40 These findings should be quite reliable as the study was a randomised, double - blind controlled trial.

41 Efficacy of pentavalent rotavirus vaccine against severe rotavirus gastroenteritis in infants in developing countries in sub-Saharan Africa: a randomised, double-blind, placebo-controlled trial.

42 This study is registered as an International Standard Randomised Controlled Trial , number ISRCTN 38354748.

43 A randomised trial can prove that a remedy works, without necessarily showing why.

44 Effect of nicorandil on coronary events in patients with stable angina: the Impact Of Nicorandil in Angina (IONA) randomised trial.

44 is a online sentence dictionary, on which you can find excellent sentences for a large number of words.

45 Famotidine for the prevention of peptic ulcers and oesophagitis in patients taking low-dose aspirin (FAMOUS): a phase III, randomised, double-blind, placebo-controlled trial.

46 Combining insulin with metformin or an insulin secretagogue in non-obese patients with type 2 diabetes: 12 month, randomised, double blind trial.

47 It is. Randomised trials in Africa in the middle of this decade proved it beyond doubt.