Remove all grammatical errors from this text: Labor induction No previous vaginal birth Body mass index greater than 30 Previous caesarean for obstructed labour No epidural anaesthesia Previous preterm caesarean birth Cervical dilation at admission to labour ward less than 4 cm Less than 2 years from previous caesarean birth Advanced maternal age Non-white ethnicity Short stature Male infant Support from hospital, care provider, and staff When the first four factors are present, successful VBAC is achieved in only 40\% of cases.
Labor induction No previous vaginal birth Body mass index greater than 30 Previous caesarean for obstructed labour No epidural anaesthesia Previous preterm caesarean birth Cervical dilation at admission to labour ward less than 4 cm Less than 2 years from previous caesarean birth Advanced maternal age white people Short stature Male infant Support from hospital, care provider, and staff When the first four factors are present, successful VBAC is achieved in only 40\% of cases.