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| H.840 : Conformance of ITU-T H.810 personal health system: Personal Health Devices interface: USB host | 
| 
| In force components |  
| Number 
 | Title | Status |  
| H.840 (04/17) 
 | Conformance of ITU-T H.810 personal health system: Personal Health Devices interface: USB host | In force 
 |  
| 
 |  
| Superseded and Withdrawn components |  
| Number 
 | Title | Status |  
| H.840 (01/15) 
 | Conformance of ITU-T H.810 personal health devices: PAN/LAN/TAN: USB host | Superseded 
 |  
| H.840 (07/16) 
 | Conformance of ITU-T H.810 personal health devices: PAN/LAN/TAN: USB host | Superseded 
 |  |