Since Chinese officials slapped GlaxoSmithKline ($GSK) with a $489 million fine on bribery charges, the company has overhauled its sales practices to quash corruption there. But some in the industry say its reforms--which include eliminating sales-based compensation incentives for reps, nixing doctor speaking fees and tripling an in-house compliance team that checks every submitted receipt--could be negatively impacting its top line at a time when the company's already hurting. More