Figure 3.

Cash flow 'Valley of Death' diagram. The cash flow 'Valley of Death' as a function of development stage (time) with typical funding sources at various stages (adapted from [12]). RAID, Rapid Access to Interventional Development; SBIR, Small Business Innovative Research; RAPID, Rapid Access to Preventive Intervention Development; STTR, Small Business Technology Transfer.

Steinmetz and Spack BMC Neurology 2009 9(Suppl 1):S2   doi:10.1186/1471-2377-9-S1-S2