Data Item _em_electron_diffraction_shell.electron_diffraction_id
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General 
- Item name
- _em_electron_diffraction_shell.electron_diffraction_id
- Category name
- em_electron_diffraction_shell
- Attribute name
- electron_diffraction_id
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
this data item is a pointer to _em_electron_diffraction.id
in the em_electron_diffraction category.
Data Type 
- Data type code
- code
- Data type detail
- code item types/single words ...
- Primitive data type code
- char
- Regular expression
- [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*
