| item | description | category | filter | more on... |
| COSG | Canadian Ophthalmology Study Group | Edu./Universities |
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| COSG | Chief Officer Steering Group | Business/General |
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| COSG | China Ocean Shipping Group | Business/Firms |
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| COSG | Committee On Seismology and Geodynamics | Edu./Geology |
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| COSG | Cuba Organic Support Group | Governmental/Military |
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