Charles River Laboratories International, Inc. (NYSE: CRL) today reported its results for the fourth-quarter and full-year 2013 and provided guidance for 2014. For the quarter, net sales from continuing operations were $289.2 million, an increase of 3.2% from $280.1 million in the fourth quarter of 2012. Foreign currency translation reduced sales by 0.5%. Sales growth was driven primarily by the Preclinical Services (PCS) segment. On a GAAP basis, net income from continuing operations for the fourth quarter of 2013 was $19.5 million, or $0.40 per diluted share, compared to $22.7 million, or $0.47 per diluted share, for the fourth quarter of 2012. On a non-GAAP basis, net income from continuing operations was $35.1 million for the fourth quarter of 2013, an increase of 13.1% from $31.0 million for the same period in 2012. Fourth-quarter diluted earnings per share on a non-GAAP basis were $0.73, an increase of 14.1% compared to $0.64 per share in the fourth quarter of 2012. The primary driver of this increase was higher sales and operating income in the PCS segment. James C. Foster, Chairman, President and Chief Executive Officer, said, “Over the past several years, we focused on targeted initiatives that were designed to position Charles River as the preferred provider for early-stage drug development: Broadening our unique portfolio, enhancing our scientific expertise, providing outstanding client service, and driving operating efficiencies. The benefit of these initiatives, and our willingness to structure strategic partnerships designed to meet the individual needs of our clients, is enabling us to win market share and drive sales and earnings growth. We view 2014 as a year of continuing progress, with sales growth in a range of 3% to 5%, operating margin improvement, and non-GAAP earnings per share in a range of $3.00 to $3.10.” Fourth-Quarter Segment Results Research Models and Services (RMS) Net sales for the RMS segment were $172.3 million in the fourth quarter of 2013, an increase of 0.2% from $171.8 million in the fourth quarter of 2012. Excluding foreign exchange, which reduced reported sales by 0.8%, RMS sales increased by 1.0%. Higher sales were driven primarily by the Vital River acquisition and growth in the Endotoxin and Microbial Detection (EMD) business, partially offset by lower legacy sales of research models.