Original sentence: Disagreements like this help to explain why Caesarean rates for some doctors and hospitals are much higher than are those for others.For example, one obstetrician may feel that a woman is too small to deliver her baby, another might well disagree.Note, however, that different providers may disagree about when a caesarean is required.Obstetricians or other care-providers recommend caesarean section when vaginal delivery might pose a risk to the mother or baby.Similarly, some care providers may be much quicker to cite "failure to progress" than others.previous cesarean section (though this is controversial -- see discussion below)
Edited sentence: Obstetricians recommend caesarean section when vaginal delivery might pose a risk to the mother or baby.previous cesarean section ("once a cesarean section - always a cesarean section")