A recent systematic review suggested that physical therapy is effective, but there is only moderate evidence to support this conclusion.

A 1998 systematic review of studies assessing its prevalence in 13 countries concluded that about 31 % of cancer patients use some form of complementary and alternative medicine .< ref name = Ernst_Cassileth > Alternative medicine varies from country to country.

A systematic 2003 review of controlled clinical trials related to the Alexander Technique found two reputable studies suggesting the Alexander Technique is effective in reducing the disability of patients suffering from Parkinson ’ s disease and improving pain behaviour and disability in patients with back pain, and concluded that the evidence supporting the effectiveness of the Alexander Technique is encouraging but not convincing.

A systematic review of randomized controlled trials published in the Archives of General Psychiatry showed up to one-third of the six-week effect of SSRI treatment can be seen in the first week.

Nevertheless, a 2009 systematic review and meta-analysis of trials in people diagnosed with schizophrenia found that less than half ( 41 %) showed any therapeutic response to an antipsychotic, compared to 24 % on placebo, and that there was a decline in treatment response over time, and possibly a bias in which trial results were published.

A systematic review by the Cochrane Collaboration found no studies of sufficient quality to make any statement on the efficacy of the vaccine.

Guidelines issued by the UK-based National Institute for Health and Clinical Excellence ( NICE ), carried out a systematic review using different methodology and came to a different conclusion.

However, controversy exists as to tolerance to the anxiolytic effects with some evidence that benzodiazepines retain efficacy and opposing evidence from a systematic review of the literature that tolerance frequently occurs and some evidence that anxiety may worsen with long-term use.

A systematic review of CBT in depression and anxiety disorders concluded that " CBT delivered in primary care, especially including computer-or Internet-based self-help programs, is potentially more effective than usual care and could be delivered effectively by primary care therapists.

“ Health effects of Relocation following disasters: a systematic review of literature ”.

Using techniques from science, engineering and statistics, such as the systematic review of medical literature, meta-analysis, risk-benefit analysis, and randomized controlled trials ( RCTs ), EBM aims for the ideal that healthcare professionals should make " conscientious, explicit, and judicious use of current best evidence " in their everyday practice.

The systematic review of published research studies is a major method used for evaluating particular treatments.

A 2001 review of 160 Cochrane systematic reviews ( excluding complementary treatments ) in the 1998 database revealed that, according to two readers, 41. 3 % concluded positive or possibly positive effect, 20 % concluded evidence of no effect, 8. 1 % concluded net harmful effects, and 21. 3 % of the reviews concluded insufficient evidence.

The second area is the systematic review of medical literature to evaluate the best studies on specific topics.

For example, the strongest evidence for therapeutic interventions is provided by systematic review of randomized, triple-blind, placebo-controlled trials with allocation concealment and complete follow-up involving a homogeneous patient population and medical condition.

It concludes from a systematic review of available research that,

*" A systematic review has found that hypnosis enhances the effects of cognitive behavioural therapy for conditions such as phobia, obesity, and anxiety.

According to a systematic review by the Cochrane Collaboration, the best evidence in the treatment of LEMS exists for 3, 4-aminopyridine and IVIG.

A systematic review of the literature related to PID treatment was performed prior to the 2006 CDC sexually transmitted infections treatment guidelines.

Consequently, a systematic review by the Cochrane Collaboration ( published in 2008 ) found insufficient evidence to recommend the use of silver-treated dressings to treat infected wounds.

A systematic review by the Cochrane Collaboration found no studies of sufficient quality to make any statement on the efficacy of the vaccine.

In a systematic review including two prospective studies of 47, XYY boys identified by newborn screening programs and one retrospective study of 47, XYY men identified by screening men over 184 cm ( 6 ' 0 ") in height, forty-two 47, XYY boys and men had an average 99. 5 verbal IQ and 106. 4 performance IQ .< ref name =" Ratcliffe 1994 ">

In a recent systematic review of eight trials of day care for disadvantaged children under 5 years of age, long term follow up showed lower pregnancy rates among adolescents.

" In 2003, The UK ECT Review group published a systematic review and meta-analysis comparing ECT to placebo and antidepressant drugs.

He was seldom an unmethodical critic, and his reviews generally followed a systematic pattern: a description of what the work contained, a treatment of the things that had especially interested him in it, and, wherever possible, a balancing of whatever artistic merits and faults he might have found.

As a result, today, the main systematic divisions of the law into property, contract, and tort ( and to some extent unjust enrichment ) can be found in the civil law as well as in the common law.

In the 1880s, Wilhelm Ostwald at Leipzig University started a systematic investigation into reactions that were catalyzed by the presence of acids and bases, and found that chemical reactions occur at finite rates and that these rates can be used to determine the strengths of acids and bases.

A 2007 analysis of 1016 systematic reviews from all 50 Cochrane Collaboration Review Groups found that 44 % of the reviews concluded that the intervention was " likely to be beneficial ", 7 % concluded that the intervention was " likely to be harmful ", and 49 % concluded that evidence " did not support either benefit or harm ".

Alternative or complementary medicine, including acupuncture, psychological interventions, vitamins and yoga, was evaluated in a number of systematic reviews by the Cochrane Collaboration into treatments for epilepsy, and found there is no reliable evidence to support the use of these as treatments for epilepsy.

He found that forgetting occurs in a systematic manner, beginning rapidly and then leveling off.

Stephen Pearl AndrewsFor American anarchist historian Eunice Minette Schuster " It is apparent ... that Proudhonian Anarchism was to be found in the United States at least as early as 1848 and that it was not conscious of its affinity to the Individualist Anarchism of Josiah Warren and Stephen Pearl Andrews ... William B. Greene presented this Proudhonian Mutualism in its purest and most systematic form .".

For American anarchist historian Eunice Minette Schuster " It is apparent ... that Proudhonian Anarchism was to be found in the United States at least as early as 1848 and that it was not conscious of its affinity to the Individualist Anarchism of Josiah Warren and Stephen Pearl Andrews ... William B. Greene presented this Proudhonian Mutualism in its purest and most systematic form .".

For American anarchist historian Eunice Minette Schuster " It is apparent ... that Proudhonian Anarchism was to be found in the United States at least as early as 1848 and that it was not conscious of its affinity to the Individualist Anarchism of Josiah Warren and Stephen Pearl Andrews ... William B. Greene presented this Proudhonian Mutualism in its purest and most systematic form .".

Its appearance and habits are almost unknown today because no complete specimens can be found and no systematic contemporary studies were conducted.

The first ever systematic description of global disability arising in youth, published in 2011, found that among 10 to 24 year olds nearly half of all disability ( current and as estimated to continue ) was due to mental and neurological conditions, including substance use disorders and conditions involving self-harm.

Members of a profession have also been defined as " workers whose qualities of detachment, autonomy, and group allegiance are more extensive than those found among other groups ... their attributes include a high degree of systematic knowledge ; strong community orientation and loyalty ; self-regulation ; and a system of rewards defined and administered by the community of workers.

In 2009, following a 10 year systematic search, scientists reported the first natural quasicrystal, a mineral found in the Khatyrka River in eastern Russia.

Following the 2001 scandal in which $ 100bn revenue energy giant Enron was found to have sustained itself by means of institutional and systematic accounting fraud, Andersen's performance and alleged complicity as an auditor came under intense scrutiny.

They found that phonics instruction must be systematic ( following a sequence of increasingly challenging phonics patterns ) and explicit ( teaching students precisely how the patterns worked, e. g., " this is b, it stands for the / b / sound ").

A 2004 large multicentre clinical follow-up study of ECT patients in New York — describing itself as the first systematic documentation of the effectiveness of ECT in community practice in the 65 years of its use — found remission rates of only 30 to 47 percent, with 64 percent of those relapsing within six months.

In comparing the options, a systematic review found that benzodiazepines and nonbenzodiazepines have similar efficacy that is not significantly more than for antidepressants.

However, systematic evaluations have found them to align closely with freedom indices from other sources.