| Obstructive Sleep Apnoea (OSA) |
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Problems in the soft tissues of the throat which can result in an individual when asleep, stopping breathing for varying periods of time |
| Obstetrics |
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The branch of medical science concerned with the care of women during pregnancy, childbirth and for about six weeks after the birth, when the reproductive organs are recovering |
| Oesophagus |
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Food pipe |
| Oncology |
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The study and practice of treating tumours |
| Open Heart Surgery |
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Heart surgery that is carried out through a large incision in the chest |
| Ophthalmology |
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The branch of medicine devoted to the study and treatment of eye diseases |
| Osteoporosis |
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Loss of bony tissue resulting in bones that are brittle and liable to fracture |
| Otorhinolaryngology |
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The study of ear, nose and throat diseases |
| Outpatient Care |
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Provided by a hospital department on an appointment basis without the need to be admitted or to stay in hospital | |
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