https://www.researchgate.net/profile/Iwona-Czerska/publication/348559659_E- services_in_health_as_a_new_dimension_of_medicine_-
_types_of_services_and_security_of_medical_data/links/60049ce2299bf14088a2d3b b/E-services-in-health-as-a-new-dimension-of-medicine-types-of-services-i- security-of-medical-data.pdf