SAN CARLOS, Calif.--(BUSINESS WIRE)--May 2, 2006--Natus Medical Incorporated (Nasdaq:BABY - News) today reported financial results for the three months ended March 31, 2006. Natus reported revenue of $19.4 million for the quarter ended March 31, 2006, compared to $9.7 million reported in the same period in 2005. The increase was primarily attributable to the acquisition of Bio-logic Systems Corp. Gross margin improved to 62.4% for the three months ended March 31, 2006, compared with 60.1% for the first quarter of 2005. The gross margin for the 2006 period was favorably impacted by the results of Bio-logic as well as product mix among the Company’s other products.