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A doctor attending on Balbir Sr told PTI on Thursday that an endotracheal tube has been inserted, which serves as an open passage through the upper airway.
“The purpose of endotracheal intubation is to permit air to pass freely to and fro from the lungs in order to ventilate the lungs,” the doctor said.
His condition had shown mild improvement since Wednesday. However, the doctors were closely monitoring the condition of the triple Olympic gold medallist and will continue to remain in the hospital for the time being.
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His world record for most goals scored by an individual in the men’s hockey final of the Olympics still remains unbeaten. He had scored five goals in India’s 6-1 victory over the Netherlands in the gold medal match of the 1952 Helsinki Games.
He was conferred with the Padma Shri in 1957 and was also manager of India’s only World Cup winning team in 1975.