1. Invitrogen, Building Dx Play, 'Welcomes' Competition from Emerging Rivals (from April 11)
2. Perlegen Files for IPO; Seeks to Raise up to $115M (from April 10)
4. Victoria, Venter Institute Form Environmental Genomics Collaboration (from April 10)
5. GE Healthcare's Q1 Revenues Climb 10 Percent as Profit Grows 21 Percent (from April 13)