Brain-to-brain loop concept in application to porphyrias : 10-year experience at North Estonia Medical CentreZemtsovskaja, Galina; Pikta, Marika; Borissova, Julia; Pille, Viive; Luman, Merike; Viigimaa, MargusEesti Arst2016 / p. 61 http://ojs.utlib.ee/index.php/EA/article/viewFile/12917/8000 http://www.ester.ee/record=b4600434*est Investigation of porphyrias : 10-year experience at the North Estonia Medical CentreZemtsovskaja, Galina; Pikta, Marika; Borissova, Julia; Pille, Viive; Luman, Merike; Viigimaa, MargusEesti Arst2016 / p. 61 http://ojs.utlib.ee/index.php/EA/article/viewFile/12917/8000 http://www.ester.ee/record=b4600434*est