Atrial tachycardia is a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Page Content. Northern Natural Gas Company (Northern) is a subsidiary of Berkshire Hathaway Energy based in Omaha, Nebraska and has been in business since 1930. Northern owns and operates the largest interstate natural gas pipeline system in the United States.
Oil and Natural Gas Corporation Limited (ONGC) is a multinational company. this company was founded in 1956. The headquarters of ONGC is located in Dehradun city of India. Sudhir Vasudeva is the chairman of the ONGC.