Because of confidentiality rules, the F.D.A. cannot release any information about the earlier pain studies that failed to sway regulators.
But arguments against the annual physical for all adults have been fueled by a growing number of studies that failed to find a medical benefit.
But Dr. Natale said the seven earlier studies that failed to show a benefit used different combinations of anticancer drugs than the one his team conducted at a number of cancer centers in Western states.
They continued: "The author has chosen to cherry pick studies to support her misguided, inaccurate hypothesis, and ignored studies that failed to find increased risks associated with SSRI use in pregnancy….
Four medical and scientific journals recently published studies that failed to disclose the authors' financial conflicts of interest, according to a report by the Center for Science in the Public Interest.
Dr. Charles Stevens, a neurologist at the Salk Institute in San Diego, and a consultant to Motorola, said there had been many dozens of studies that failed to show health effects of microwave radiation like that emitted by cell phones, and he knew of no studies that had been replicated that showed effects.
The evidentiary value of studies was assessed, and studies that failed to meet predetermined standards were excluded.
This finding is consistent, however, with a number of studies that failed to establish a link between socioeconomic status and headache [2, 17, 28, 31].
The results are consistent with the findings of other studies that failed to find any effect of acupuncture in the treatment of drug dependence.
Van der Meer, the first author on the BMJ paper, says he has heard of several other as-yet unpublished studies that failed to find a link.
However, it has been pointed out that there are ecological and biological constraints on this test; not all species are visually oriented, and some find eyes aversive (this was the explanation for studies that failed to show MSR in gorillas).
