Welcome to "Who Got the Work?℠," a weekly column that highlights the law firms and lawyers who are being brought in to handle key California cases and close major deals for their clients.

In this week's column, White & Case defends Gilead in an antitrust lawsuit from Aetna; Simpson Thacher & Bartlett signs on to a securities suit against a hearing aid maker following its IPO, Kirkland & Ellis advises a Silicon Valley health care investment firm in its telemedicine acquisition.