Natus Medical Shares Down 6%; Earlier Reported Q1 Adj. EPS $0.30 vs $0.33 Est., Sales $124.7M vs $122.6M Est.; Sees Q2 Adj. EPS $0.32-$0.33 vs $0.40 Est., Sales $121M-$123M vs $124M Est.; Affirms FY17 Outlook