1957 House Bill 3036. Report Of The Committees On Rules Of The Two Branches, Acting Concurrently, With Recommendations, Together With A Draft Of Legislation Necessary To Carry Its Recommendations Into Effect, In Accordance With The Provisions Of An Order (Adopted In The House On Tuesday, March 12, 1957, And In The Senate On Thursday, March 21, 1957), "Authorizing The Committees On Rules Of The Two Branches, Acting Concurrently To Make An Investigation And Study Of The Proposed Increase In Premiums Contemplated By Massachusetts Hospital Service, Inc., And Massachusetts Medical Service, Inc., Operators Of The Hospital And Medical Plans Known As Blue Cross And Blue Shield (H. 2797)".