Fig. 3From: How to develop a sustainable telemedicine service? A Pediatric Telecardiology Service 20 years on - an exploratory studyTelemedicine service logistic growth curve. Telemedicine service adoption for out-patient consultations, 1998–2016. P: cumulative performed teleconsultations; P′: logistic fitted curve (r = 0.9997), calculated with the Griliches’ model [22]Back to article page