pid type title authors mentors source_title published_date url doi isbn issn eissn kbsplit:10 "journal article" "The Levels of Serum Serotonin Can Be Related to Skin and Pulmonary Manifestations of Systemic Sclerosis" "Petric, Marin; Perkovic, Dijana; Bozic, Ivona; Marasovic Krstulovic, Daniela; Martinovic Kaliterna, Dusanka"