Subjects
- Anus, Imperforate -- surgery1
- Aorta, Abdominal -- surgery1
- Appendectomy2
- Appendicitis -- surgery2
- Arteries1
- Arthroplasty1
- Ascorbic Acid -- metabolism1
- Asociación Demográfica Salvadoreña.1
- Asociación Pro-Bienestar de la Familia Colombiana.1
- Asthma -- etiology1
- Back Pain -- therapy1
- Bacterial Infections1
- Biomechanical Phenomena1
- Blood Pressure1
- Blood Specimen Collection1
- Blood Specimen Collection -- methods1
- Breast Neoplasms -- therapy1
- Bronchi -- surgery1
- Bronchoscopy1
- Bruxism -- therapy1