business law distribution of dividends or retaining should be determined in terms of its impact on the shareholders' wealth. Financial manager should determine the optimum dividend policy, which maximises market value of the share thereby market value of the firm. Considering the factors to be considered while determining dividends is another aspect of dividend policy.

71 Can we use warfarin during pregnancy or during menstruation in a patient with a prosthetic valve? Is anticoagulation necessary in a patient with a corrected ventricular septal defect (VSD) or corrected coarctation of aorta?

72 I want to ask about Duke criteria in diagnosing infective endocarditis.

73 Is Staphylococcus aureus the most frequent causative agent of acute bacterial endocarditis? And is this typical of acute bacterial endocarditis?

74 Please explain the mechanism of the mycotic aneurysm in infective endocarditis.

75 Why are the right valves more commonly affected in infective endocarditis when the microbes enter through the IV route, for example with IV drug users?

76 You have said that in IV drug users the microbes go directly to the right ventricle, thus causing endocarditis in the right heart. But in dental procedures the microbes also go through the veins to the right heart first, so why are the left heart valves more commonly affected?

77 What causes splenomegaly in infective endocarditis?

78 We know that Janeway lesions appear with infective endocarditis, but is there any other disease that can cause it?

79 Patent ductus arteriosus (PDA) is also called duct-dependent circulation. What is the meaning of this phrase and do other conditions present with a similar condition? What is the implication of this condition to the human body?

80 What is the recommended treatment for a child with both congenital and valvular heart disease?