How many movies have Elaine Giftos and Roger Corman collaborated on?

They have worked on 3 movies together! Their first movie together was Gas! -Or- It Became Necessary to Destroy the World in Order to Save It. (1970) while their highest rated movie together was The Student Nurses (1970). They have not worked together since Body Chemistry 4: Full Exposure (1995). They are most known for their drama films together.