Dialysis clinic operator Fresenius Medical Care Renal Services Ltd has posted a 5% increase in turnover to £47.5m for the year ended 31 December 2014.Cost of sales decreased from £38.6m to £36.9m, whilst administrative expenses fell to £5.8m from £5.9m the previous year. The result was operating profit of £4.7m against £636,000 in 2013. However,…