Pynciau “...Blood Circulation....”

Tabl Cynhwysion “...Surgery -- Drugs -- Circulation : the cardiovascular and lymphatic systems -- Blood and immunity -- The respiratory system -- The digestive system -- The urinary system -- The male reproductive system -- The female reproductive system. ...”

Tabl Cynhwysion “...Typhus -- Preying on the weak -- 36.Cholera -- The deadliest diarrhoea -- 37.Puerperal Fever -- Killer of mothers -- 38.Tuberculosis -- Spitting blood -- 39.Influenza A -- A mutating virus -- 40. ...”