Preface.Acknowledgements.Abbreviations.1 A 64-year-old woman with recurrent fever and cough,.2 A 5-year-old girl with a painful hip,.3 A 64-year-old woman with shortness of breath and ill fitting shoes,.4 A 50-year-old psychologist who feels dizzy,.5 A 74-year-old man with discomfort on eating,.6 A 49-year-old teacher with dysuria and fever,.7 A 70-year-old widow with severe pain in left shoulder,.8 A 61-year-old clerk with excruciating abdominal pain,.9 A 75-year-old man who fell to the floor,.10 A 5-year-old boy with a swollen right ankle,.11 A 78-year-old pale woman with fever,.12 A 66-year-old retired truck driver with urinary frequency,.13 A 30-year-old electrician with fever and vomiting,.14 A 30 - year-old singer who could not open his mouth,.15 A 68-year-old cashier with a loss of appetite,.16 A 41-year-old teacher with pruritic rash,.17 A 70-year-old gardener with backache,.18 A 22-year-old student with a lump on the side of his neck,.19 A 70-year-old sailor with heartburn and crimson face,.20 A 62-year-old housekeeper with unusual gait,.21 A 72-year-old librarian with diabetes,.Appendices.Index