At present, CHNG consists of its core enterprise (China Huaneng Group Corporation), and nine other member corporations (Huaneng International Power Development Corporation, Huaneng Raw Materials Corporation, China Huaneng Finance Corporation, China Huaneng Technology Development Corporation, Huaneng Comprehensive Utilization Development Corporation, Huaneng Real Estate Development Corporation, Huaneng Industrial Development & Service Corporation, China Huaneng International Trade-Economics Corporation, and Huaneng South Development Corporation) and about 400 subsidiary companies throughout China. In addition, it directly controls about 30 overseas branches and companies. Only two subsidiaries are publicly held: Huaneng International Power Development Corporation and Shangdong Huaneng Power Development Corporation. Both had their stocks issued on the New York Stock Exchange during the second half of 1994.

81 Can you describe a few instances that might cause a case of tetralogy of Fallot to go into congestive cardiac failure, even though this is an unlikely occurrence? Please explain how this happens.

82 Is a single ventricle disease associated with any syndrome? If so, what is its name and what are its characteristics?

83 What is the cause of splitting of the second sound in breathing and why is it wide and fixed in atrial septal defect (ASD)?

84 Why are deep-sea divers considered a 'high-risk' group if they have an atrial septal defect (ASD)?

85 Is it prognostically beneficial to start treatment of impending cor pulmonale in a case of chronic obstructive pulmonary disease (COPD) with no symptoms of failing heart but with investigational evidence (electrocardiogram and chest X-rays)?

86 What would be the ideal investigation for a suspected pulmonary embolism according to the protocol in a UK hospital?

87 Can the apical pulsation in right ventricular enlargement be hyperdynamic?

88 Please explain concentric and eccentric left ventricular hypertrophy. When the hypertrophied ventricle dilates and the wall thins out, is it still called a hypertrophied ventricle?

89 What is viral pericarditis?

90 I want to know why thrombolytic therapy is contraindicated in acute pericarditis.