This document discusses multi-channel marketing approaches for engaging with physicians. It outlines several potential channels including field sales teams, CSO sales teams, inside sales representatives, alternate sampling channels, direct mail/fax/email, market intelligence, and product websites. It emphasizes targeting not just high-value physicians but also non-targeted HCPs, supportive healthcare staff, and pharmacists. When implementing a multi-channel strategy, the document recommends considering partner selection, budget, timeline, internal processes, and targets to ensure effective rollout.