Source: https://www.researchgate.net/profile/Patrick-Friocourt/publication/290542995_Test_your_knowledge_on_the_interpretation_of_the_MMSE_and_the_rules_according_to_which_the_test_must_be_carried_out/links/5992c828458515c0ce5d7231/Test-your-knowledge-on-the-interpretation-of-the-MMSE-and-the-rules-according-to-which-the-test-must-be-carried-out.pdf