This funnel is a starting point to a funnel with landing page, OTO-page and thank you page. You can optimize it to your liking. I use Clickfunnels for all my funnels and I highly recommend it due to their analytics. Without analytics your funnel is useless as you do not know at what point people drop off your funnel meaning you can not fix what you do not know.
Another is a new approach to interaction. Organizations will need to look beyond traditional inpatient and outpatient care when they think about interaction with consumers. They will need to look at all the personal and commercial activities of their consumers, to find ways to become part of those activities, and to ensure that health-related interaction is continuous, not episodic.
As a software engineer myself, I can tell you that building funnels from an application standpoint takes massive amounts of work. There's a great deal of coding and integration that's required here. From email systems to landing page implementations to credit card processing APIs, and everything in between, so many platforms need to "talk," that it takes the bar too high for the average marketer.