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Obstetrics
31
United States
25
Parturition
18
Child
14
Gynecology
14
New York
14
Homeopathy
13
Midwifery
12
Tuberculosis, Pulmonary -- therapy
12
Electric Stimulation Therapy
11
Medicine
11
Physicians
11
Philadelphia
10
Materia Medica
8
Brazil
7
Health Resorts
7
Mental Disorders
7
Mexico
7
Pharmaceutical Preparations
7
Sanitation
7