Head 70 Head and Neck Surgery 64 Otolaryngologic surgery 64 Neck 60 Surgery 50 Otorhinolaryngology 42 Heads of state 35 más ... Head and Neck Neoplasms 33 Biography 31 Subject headings 27 Maxillofacial surgery 20 Oral and Maxillofacial Surgery 20 Oral surgery 20 pathology 19 Subject headings, Library of Congress 16 Neurosurgery 14 Otorhinolaryngologic Diseases 14 Plastic Surgery 13 Plastic surgery 13 methods 13 therapy 13 Cancer 12 Radiology 12 diagnosis 12 Kings and rulers 11 Oncology 11 surgery 11 General Surgery 10 Imaging / Radiology 10 Oncology   10 menos ...