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But more recent, randomized studies have called those findings into question.
But these claims are based on surgeons' reporting of their own results, rather than randomized studies.
To try to answer the question here, experts began a huge randomized study in 1999 that was open to several hundred hospitals.
In contrast, the emerging results of randomized studies are not finding any such effects.
On the other hand, randomized studies are time consuming, expensive and not always feasible.
In some cases, such randomized studies are uneconomical or unethical.
Several large randomized studies have had similar results.
The initial analysis of the data from properly randomized studies often follows the study protocol.
Only three of the nine randomized studies reported a survival advantage using thalidomide.
No randomized studies support the widespread use of this regimen in untreated patients.
They found that women would adhere to a low-fat diet and the formal randomized study began in 1994.
However, such a randomized study has never been done, despite the use of metastatectomy for many years.
Statistical inference from randomized studies is also more straightforward than many other situations.
Of course, the data from a randomized study can be analyzed to consider secondary hypotheses or to suggest new ideas.
With the relative infrequency of male breast cancer, randomized studies are lacking.
A larger randomized study examined 415 second and seventh graders performing far below national reading standards.
It is supported by one randomized study.
As yet, no large, long-term, randomized studies have eliminated this concern entirely; it merits more research to find a definite answer.
There are no randomized studies of infusion pumps.
When research was conducted, it was generally as surveys rather than as randomized studies.
Artificial disc versus fusion: A prospective, randomized study with 2-year follow-up on 99 patients.
Dr. Blair is doing a randomized study of 450 middle-aged and older women who are slightly overweight.
The reviewers suggested that randomized studies and standardized administration techniques would be required to create conclusive evidence.
Only in the late 1960's, when the first randomized studies were done, did researchers find that shaving was no more effective than scrubbing.
Although all of these methods have potential benefits, there has been no randomized study that has shown unequivocal benefit.
Randomised study of three non-surgical treatments in mild to moderate obstructive sleep apnoea.
A recent large randomised study in India found no such effect but rather an apparent slight excess of deaths in the supplemented group.
A prospective randomised study.
Randomised study.
No randomised study has ever shown that these negative aspects of childbirth are a result of epidural analgesia.
Lactobacillus supplementation for diarrhoea related to chemotherapy of colorectal cancer: a randomised study.
To further clarify the benefit of the combination of topical techniques for tumour destruction and external beam radiotherapy randomised studies are required.
Randomised studies comparing non-steroid drugs with placebo or steroids in adult patients with IPF were included.
Ambulatory blood pressure after therapeutic and subtherapeutic nasal continuous positive airway pressure for obstructive sleep apnoea: A randomised study.
Vecht et al report a randomised study of 63 patients and confirm significantly longer overall and functionally independent survival in the surgically treated patients.
Once-daily sublingual allergen-specific immunotherapy improves quality of life in patients with grass pollen-induced allergic rhinoconjunctivitis: a double-blind, randomised study.
There are no randomised studies of the efficacy of surgical ablation of endometriosis either at laparotomy or at laparoscopy on future fertility.
It is easier than intravenous heparin to give and it has been shown in randomised studies from McMaster University in Canada that it is as effective.
An improvement in survival with combinations of 5-fluorouracil and leucovorin, however, has been observed in only two of seven randomised studies, and the improvement was only moderate.
Kronborg O, Fenger C, Olsen J, et al.: Randomised study of screening for colorectal cancer with faecal-occult-blood test.
Recent attempts to enhance the therapeutic activity of 5-fluorouracil have focused on biochemical modulation: several randomised studies have shown that its effect is greater when used in combination with leucovorin.
A controlled, randomised study was performed to evaluate the efficacy of treatment with heater probe in the prevention of rebleeding from peptic ulcer with a non-bleeding visible vessel.
A randomised study with subcutaneous low-dose interleukin 2 alone vs. interleukin 2 plus the pineal neurohormone melatonin in advanced solid neoplasms other than renal cancer and melanoma.
We aim to complete the groundwork within 12 months but hope that concurrently British urologists will agree to work together in a randomised study of treatment for prostatic cancer confined to the organ.
In the relatively new field of western psychological mindfulness, researchers attempt to define and measure the results of mindfulness primarily through controlled, randomised studies of mindfulness intervention on various dependent variables.
Delvaux N, Razavi D, Marchal S, et al.: Effects of a 105 hours psychological training program on attitudes, communication skills and occupational stress in oncology: a randomised study.
Landoni F, Maneo A, Colombo A, et al.: Randomised study of radical surgery versus radiotherapy for stage Ib-IIa cervical cancer.
Large prospective randomised study In the randomised TARGIT-A trial, the overall complications was equivalent between TARGIT and whole breast radiotherapy.
"It is important to remember that dietary supplements can have harmful as well as positive consequences and recommendations need to be made on the basis of evidential benefit in well conducted randomised studies in large populations.
Waymont B, Lynch TH, Dunn JA, et al.: Phase III randomised study of zoladex versus stilboestrol in the treatment of advanced prostate cancer.