191. [Scientist using an electron microscope] Subject(s): Equipment and SuppliesWorld Health Organization
192. The electron microscope - one of the wonders of modern technology Subject(s): Equipment and SuppliesWomenWorld Health Organization
193. Tonograph used for the early detection and diagnosis of claucoma. The drainage speed of eye fluid is registered and interpreted. [i.e. glaucoma] Subject(s): Equipment and SuppliesWorld Health Organization
194. Direct method of examining the fundus oculi or eyeground Subject(s): OphthalmologyEquipment and SuppliesPhysiciansWorld Health Organization
195. Examination of the retina with a binocular ophtalmoscope [i.e. ophthalmoscope] Subject(s): PhysiciansOphthalmologyEquipment and SuppliesWorld Health Organization
196. A recent method of diagnosing detachment of the retina by examining the eyeground with a three-mirror glass devised by Professor Goldman of Berne, Switzerland Subject(s): OphthalmologyEquipment and SuppliesWorld Health Organization
197. Electro-retinogram: modern apparatus devised to measure the electric potential of the retina Subject(s): Equipment and SuppliesWorld Health Organization
198. [Miniature transmitter used to monitor heartbeats] Subject(s): Cardiovascular DiseasesEquipment and SuppliesWorld Health Organization
199. The sound of the dog's heartbeats is picked up by a microphone stuck to his fur Subject(s): Cardiovascular DiseasesEquipment and SuppliesWorld Health Organization
200. The passage of the dye through the blood vessels is recorded by two small photo-electric cells Subject(s): Cardiovascular DiseasesEquipment and SuppliesWorld Health Organization