Clinical Research Directory

Inclusion Criteria: * Age ≥ 18 years old for the category marked with \*. * Undergo capillary blood sampling ; * Belong to one of the clinical categories: * Patient in need of blood transfusion without any pathology known to have an impact on transfusion act\* ; * Patient in need of blood transfusion suffering from congenital erythrocyte pathology (sickle cell anaemia, beta thalassemia)\* ; * Patient in need of blood transfusion suffering from haematology disease (e.g. cancer), or undergoing haemodialysis\* ; * Patient with cold agglutinin\* ; * Premature patient with gestational age \< 37 weeks or newborn ≤27 days old in need of blood transfusion ; * Newborn eligible for the Guthrie Test ; * Newborn eligible for the glycaemic test. * Have health care insurance ; * Have given his/her written consent (or legal representative in the case of a newborn) ; Exclusion Criteria: * Pregnant woman ; * Person deprived of liberty ; * Unconscious person ; * Person under guardianship or trusteeship ; * For paediatric clinical category: age ≥28 days and \<18 years old.