1. Thus, it was agreed that an overestimation or lack of estimation of risks is a cause of VoD. The data analysis showed several other causes for VoD, including insufficient time for commercialization and business development;Down Vod;These scholars, Gicheva and Link,2008
2. Elmansori;Maia;Raven & Geels, 2010), undermining of commercialization aspects,2002