Some do, in private practice. Others will have one or more partners in a private group practice. Others work as subspecialists (e.g. high risk obstetrics) doing consults. Yet others, hospitalists, work for hospitals.
obstetricians
They work with the reproductive system and deliver babies.
It depends on whether they work in hospitals, physician's offices, universities, etc. The lowest 10th percentile of obstetricians earn $188,000. The average salary is approximately $217,000.
Obstetrician. doctors means help the people or cure the people
In private practice, as many as they want. At a hospital, more or less every day.
FOGSI
Pregnant women.
obstetricians
A hospital!
they don't work alone because as you said they're "many", so they are not alone.
THE cell doesnt WORK alone
No phosphorus does not work alone. It works along with calcium