Washington: Nitrous oxide - best known as laughing gas - has been one of the world`s oldest and most widely used anaesthetics.However, despite its popularity, experts have questioned its impact on the risk of a heart attack during surgery or soon afterward.But those fears are unfounded, a new study by researchers at Washington University School of Medicine in St. Louis suggests.
Smriti Irani files nomination from Amethi
Srinivasan should be kept out of BCCI affairs: SC
61st National Film Awards announced
Ananth Kumar calls Congress a non-performer across India