This, together with clinical pressures and conflicting demands on time, result at best in the possibility of biased recruitment and, at worse, limit recruitment to research and obstruct patients from making decisions about participation.
We want to find ways to reach as much of the population as possible without the research context obstructing their willingness to take up these offers.
Stem cell researcher Jeanne Loring of Scripps Research Institute in San Diego, California, who believes WARF patents are unjustified and obstruct research, says she is "surprised" at the PTO ruling.
But in Henan, that same provincial government has obstructed research on the scale of H.I.V. infections and persecuted those working to prevent the further spread of the disease, making more deaths a certainty.
However, difficulties caused by insolubility of subunits, heterogeneous assembly, flexibility, and presence of other surface appendages, such as cytochromes, obstruct researches of T4P and T2SS at atomic resolution.
It is important to recognise that many participant communities across Africa are considered 'vulnerable' to exploitation: poor, with low research literacy and obstructed access to healthcare.
Health Minister Ana María Pastor said that the government did not intend to obstruct such research but that, under revisions in a law on assisted reproduction, the research must be supervised by the national government.
In addition, he aims at showing that the food industry has systematically tried to obstruct scientific research that exposes the dangers of sugar, just as tobacco companies tried to hide the risks of smoking.
Will such a patent advance or obstruct medical research?
