Having the prothrombin mutation increases the risk of developing a DVT (a blood clot in the deep veins, typically the legs) and/or PE (blood clot that travels to the lungs). DVTs are dangerous because they can damage the veins, leading to pain and swelling, and sometimes to disability.
A Clinical Research Associate (CRA), also called a clinical monitor or trial monitor, is a health-care professional who performs many activities related to medical research, particularly clinical trials.
what is the difference between : PPS , PPL , PPC , PPA. 1  please , i want to know what is the difference between these types of payment : ( pay per sales ) , ( pay per lead ) , ( pay per click ) and ( pay per action 2  )? Pay per sale: The affiliate is paid a commission when a sale is made. Pay per lead: The affiliate is paid for a lead, in other words when someone fills out a form or subscribes to a newsletter. Pay per click: The affiliate is paid for each click.