Infantile Tremor Syndrome after Peroral and Intramuscular Vitamin B12 Therapy: Two Cases - Tunçer, Gokcen Oz; Köker, Alper; Köker, Sultan Aydin; Aba, Alper; Kara, Tuğçe Tural; Coban, Yasemin; Akbas, Yılmaz (Klinische Pädiatrie, 2019)