Epocrates expanded its mobile resource centers, adding disease-specific areas underwritten by pharma advertisers.

The resource centers, targeted to clinicians, provide medical commentaries and updates on the diagnosis and treatment of prevalent conditions, including atrial fibrillation, Alzheimer’s disease, diabetes, epilepsy, infection management, pain management and venous thromboembolism, according to a company statement.

The disease-specific areas also deliver “unobtrusive branded messages” to docs, according to an Epocrates spokesperson. The application is available as a free download for Palm and Windows mobile devices, as well as iPhones. One in three physicians in the US uses Epocrates mobile or web-based software, according to the company’s website.

Emerging Solutions in Pain, a division of MediCom Worldwide, launched an iPhone app for docs working in pain management and addiction earlier in the week. That application is also free, and provides journal summaries, clinical trial results and an ESP radio function, but is only available on the iPhone.