S1-Guideline on the use of CTG during pregnancy and labor. Long version – AWMF Registry No. 015/036 - German Society of Gynecology and Obstetrics (DGGG); Maternal Fetal Medicine Study Group (AGMFM); German Society of Prenatal Medicine and Obstetrics (DGPGM); German Society of Perinatal Medicine (DGPM) (Geburtsh Frauenheilk, 2014)