title: No big data without small data: learning health care systems begin and end with the individual patient.
authors.affiliation: Medical Department, Lilly, Madrid, Spain.
authors.forename: José A
authors.initials: JA
authors.lastname: Sacristán
authors.affiliation: Medical Department, Lilly, Madrid, Spain.
authors.forename: Tatiana
authors.initials: T
authors.lastname: Dilla
mesh_terms: D003695:Delivery of Health Care / Q000458:organization & administration* / Q000592:standards; D057286:Electronic Health Records / Q000458:organization & administration*; D019317:Evidence-Based Medicine / Q000458:organization & administration* / Q000592:standards; D006801:Humans; D007256:Information Systems / Q000458:organization & administration*; D019359:Knowledge; D018802:Patient-Centered Care / Q000458:organization & administration* / Q000592:standards; D057285:Precision Medicine
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