One study estimated the cost of bed rest per woman at $1,400.

The study estimated $3 billion for a total investment over 15 years.

The study estimated that the system had 40 teachers it did not need.

Of those, studies have estimated that 500 to 4,500 could die.

The study estimated that in 1983 drug abuse cost the nation $60 billion.

A recent study estimated that less than 10% are identified.

An independent study in 2010 estimated the full cost to be closer to $10 billion.

Our study estimated the cost of carrying out the new standards at $43 billion.

One study estimated its contribution to the economy at $4 million.

The study estimated the cost to Americans of present restrictions at $20 billion a year.