21. [A physician demonstrates how easy it is to inject insulin] Subject(s): PhysiciansInjectionsChildWorld Health Organization
22. Nodules or lumps in the skin produced by the parasitic worms are one of the early signs of onchocerciasis Subject(s): ChildPhysiciansWorld Health Organization
23. Direct method of examining the fundus oculi or eyeground Subject(s): OphthalmologyEquipment and SuppliesPhysiciansWorld Health Organization
24. Examination of the retina with a binocular ophtalmoscope [i.e. ophthalmoscope] Subject(s): PhysiciansOphthalmologyEquipment and SuppliesWorld Health Organization
25. The doctor takes throat swabs for laboratory examination Subject(s): NursesHealth EducationChildPhysiciansPhysical Examination
26. [Swiss physician is checking an elderly patient's blood pressure] Subject(s): AgedPhysiciansEquipment and SuppliesWorld Health Organization
27. Emergency treatment at home for a victim of a stroke Subject(s): Emergency Medical ServicesPhysiciansPatientsWorld Health Organization
28. A pacemaker to prevent heart block is bbeing passed into the patient's right ventricle while the checks its position on the x-ray screen Subject(s): PhysiciansEquipment and SuppliesNursesWorld Health Organization
29. The machine that will take over the functions of the patient's heart and lungs during the operation Subject(s): Cardiovascular DiseasesPhysiciansEquipment and SuppliesNursesSwedenWorld Health Organization
30. This school girl is at home with a sore throat and the doctor checks her heart Subject(s): Physical ExaminationPhysiciansStethoscopesEquipment and SuppliesChildWorld Health Organization