| | Professional, Technical and related workers @en | |
| | Physical Scientists And Related Technicians @en | |
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| | Physical Scientists Not Elsewhere Classified @en | |
| | Physical Science Technicians @en | |
| | Architects, Engineers And Related Technicians @en | |
| | Engineers, Specialisation Unknown @en | |
| | Architects and Town Planners @en | |
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| | Electrical and Electronics Engineers @en | |
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| | Engineers Not Elsewhere Classified @en | |
| | Architects, Engineers And Related Technicians @en | |
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| | Technicians, Specialisation Unknown @en | |
| | Civil Engineering Technicians @en | |
| | Electrical and Electronics Engineering Technicians @en | |
| | Mechanical Engineering Technicians @en | |
| | Chemical Engineering Technicians @en | |
| | Metallurgical Technicians @en | |
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| | Engineering Technicians Not Elsewhere Classified @en | |
| | Aircraft And Ships\' Officers @en | |
| | Aircraft Pilots, Navigators and Flight Engineers @en | |
| | Ships' Deck Officers and Pilots @en | |
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| | Life Scientists And Related Technicians @en | |
| | Biologists, Zoologists and Related Scientists @en | |
| | Bacteriologists, Pharmacologists and Related Scientists @en | |
| | Agronomists and Related Scientists @en | |
| | Life Sciences Technicians @en | |
| | Medical, Dental, Veterinary And Related Workers @en | |
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| | Pharmaceutical Assistants @en | |
| | Dietitians and Public Health Nutritionists @en | |
| | Medical, Dental, Veterinary And Related Workers @en | |
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| | Nursing Personnel Not Elsewhere Classified @en | |