paid clinical trials labcorpclinicaltrials.com Category:biotechnology and pharmaceuticals Global Rank:207,873 visits:140.6K pages/Per:8.5 researchforyou.co.uk mac clinical research is a uk based medical research organisation which conducts paid clinical trials to develop new types of medicines. Category:biotechnology and pharmaceuticals Global Rank:846,648 visits:39.6K pages/Per:3.1 ADS