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(en) Veronika Vakhapova, Tzafra Cohen, Yael Richter et Yael Herzog, « Phosphatidylserine Containing Omega-3 Fatty Acids May Improve Memory Abilities in Nondemented Elderly Individuals with Memory Complaints: Results from an Open-Label Extension Study », Dementia and Geriatric Cognitive Disorders, vol. 38, nos 1-2, , p. 39–45 (ISSN1420-8008 et 1421-9824, DOI10.1159/000357793, lire en ligne, consulté le )
(en) Veronika Vakhapova, Tzafra Cohen, Yael Richter et Yael Herzog, « Phosphatidylserine Containing Omega-3 Fatty Acids May Improve Memory Abilities in Nondemented Elderly Individuals with Memory Complaints: Results from an Open-Label Extension Study », Dementia and Geriatric Cognitive Disorders, vol. 38, nos 1-2, , p. 39–45 (ISSN1420-8008 et 1421-9824, DOI10.1159/000357793, lire en ligne, consulté le )
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(en) Veronika Vakhapova, Tzafra Cohen, Yael Richter et Yael Herzog, « Phosphatidylserine Containing Omega-3 Fatty Acids May Improve Memory Abilities in Nondemented Elderly Individuals with Memory Complaints: Results from an Open-Label Extension Study », Dementia and Geriatric Cognitive Disorders, vol. 38, nos 1-2, , p. 39–45 (ISSN1420-8008 et 1421-9824, DOI10.1159/000357793, lire en ligne, consulté le )