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This section contains an enumeration of examples, but lacks a general overview of its topic. You can help by adding an appropriate introductory section. Editing help is available. (December 2012)
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This section has multiple issues. Please help or discuss these issues on the talk page. (Learn how and when to remove these template messages)
This section contains an enumeration of examples, but lacks a general overview of its topic. You can help by adding an appropriate introductory section. Editing help is available. (December 2012)
(Learn how and when to remove this template message)
This section has multiple issues. Please help or discuss these issues on the talk page. (Learn how and when to remove these template messages)
This section contains an enumeration of examples, but lacks a general overview of its topic. You can help by adding an appropriate introductory section. Editing help is available. (December 2012)
(Learn how and when to remove this template message)