The branch of medical science which deals with the problems of the old

The branch of medical science which deals with the problems of the old Correct Answer Geriatrics

One word substitute is Geriatrics.

Oncology: the study and treatment of tumours.
Geriatrics: the branch of medicine or social science dealing with the health and care of old people.
Obstetrics: the branch of medicine and surgery concerned with childbirth and midwifery.
Endocrinology: the branch of physiology and medicine concerned with endocrine glands and hormones.

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