= NIHR !BioResource Questionnaire - frequency list = The NIHR !BioResource questionnaire includes a section for participants to list their long-term medication. Our intention is to build up a picking list for this, compiled from the answers given by participants, and add to it as the recruitment process expands. There is a dm+d browser at http://www.ppa.org.uk/systems/pcddbrowserv2_3new/browser.jsp#product which is a good place to look up correct drug names and dose information. Starting drop-down list should contain: OD = omni die (every day) OM = omni mane (every morning) ON = omni nocte (every night) BD = bis die (twice daily) TDS = ter die sumendum (to be taken three times daily) QDS = quater die sumendum (to be taken four times daily) QQH = quarta quaque hora (every four hours) PRN = pro re nata (when required)