The consequences of nuclear war on the environment, like its consequences on the balance of power, were difficult to prove; most data came from computer models, and from research on other planets.
Long-term studies were also uncommon, with most data coming from experiments lasting 2 3 years.
For penicillin G and flucloxacillin, most data come from observational, noncontrolled studies often in home-based care settings [45 47].
Comparative literature assessing the relative safety and efficacy of different BoNT products is limited, most data come from reports on small samples, and only a few studies meet criteria of evidence-based medicine.
Even though most data coming from the analysis of completely sequenced genomes and directed-evolution experiments strongly support the patchwork hypothesis, we do not think that all the metabolic pathways arose in the same manner.
There is some uncertainty about the biggest blue whale ever found, as most data came from blue whales killed in Antarctic waters during the first half of the twentieth century, which were collected by whalers not well-versed in standard zoological measurement techniques.
There were not many formal field studies examining the difference in ecosystem C cycle between plantations and natural forests, as most data came from the studies that were not established specifically to address this issue.
In addition, given that most data come from established research settings, the presence of a dedicated malaria research team, with improved health infrastructure and/or surveillance, is itself likely to reduce the burden of malaria that would otherwise occur in that setting.
Most data came from senior specialists, supplemented by enrolment and graduation records.
For penicillin G and flucloxacillin, most data come from observational, noncontrolled studies often in home-based care settings [ 45- 47].
