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    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration. — Stock Photo
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration.
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Dentist and assistant examining mouth of patient in chair with t — Stock Photo
    Dentist and assistant examining mouth of patient in chair with t
    Dentist and his assistant using the ultraviolet lamp in the denture of the patient — Stock Photo
    Dentist and his assistant using the ultraviolet lamp in the denture of the patient
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Top view of various models of dental jaws with caries and missing teeth in white container used for training of dentistry students — Stock Photo
    Top view of various models of dental jaws with caries and missing teeth in white container used for training of dentistry students
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Team of dentists before an operation — Stock Photo
    Team of dentists before an operation
    Medical illustration of human scapula bones — Stock Photo
    Medical illustration of human scapula bones
    Focused middle aged professional doctor in green uniform examining oral cavity of woman in dentist chair — Stock Photo
    Focused middle aged professional doctor in green uniform examining oral cavity of woman in dentist chair
    Oral trichomonas parasites, digital illustration. — Stock Photo
    Oral trichomonas parasites, digital illustration.
    Focused middle aged professional doctor in green uniform examining oral cavity of woman in dentist chair — Stock Photo
    Focused middle aged professional doctor in green uniform examining oral cavity of woman in dentist chair
    Team of dentists removing a tooth from a patient — Stock Photo
    Team of dentists removing a tooth from a patient
    Anatomy of female kidneys reproductive organs — Stock Photo
    Anatomy of female kidneys reproductive organs
    3D rendering of human teeth and skull on black background — Stock Photo
    3D rendering of human teeth and skull on black background
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Instrumental in the dentist's office — Stock Photo
    Instrumental in the dentist's office
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration.
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer.
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration.
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Oral trichomonas parasites, digital illustration. — Stock Photo
    Oral trichomonas parasites, digital illustration.
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital illustration.
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer.
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration. — Stock Photo
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration.
    Boy with missing teeth smiling — Stock Photo
    Boy with missing teeth smiling
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    3D rendering of female reproductive system on black background — Stock Photo
    3D rendering of female reproductive system on black background
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration. — Stock Photo
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration.
    Medical illustration of skull and skeletal system — Stock Photo
    Medical illustration of skull and skeletal system
    Dentist observing an x-ray before operating — Stock Photo
    Dentist observing an x-ray before operating
    Three dimensional view of human skull and teeth — Stock Photo
    Three dimensional view of human skull and teeth
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration.
    Cross-section of human head anatomy — Stock Photo
    Cross-section of human head anatomy
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    3D rendering of human vertebral column on black background — Stock Photo
    3D rendering of human vertebral column on black background
    Colored magnetic resonance imaging scans of healthy brain of patient. — Stock Photo
    Colored magnetic resonance imaging scans of healthy brain of patient.
    Human tooth decay — Stock Photo
    Human tooth decay
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration.
    Dentist and assistant examining mouth of patient in chair with t — Stock Photo
    Dentist and assistant examining mouth of patient in chair with t
    Team of dentists operating on a patient — Stock Photo
    Team of dentists operating on a patient
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Dentist studying an x-ray before operating — Stock Photo
    Dentist studying an x-ray before operating
    Secondary follicles in an ovary — Stock Photo
    Secondary follicles in an ovary
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Anterior view of human skull anatomy — Stock Photo
    Anterior view of human skull anatomy
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Lateral larynx and skeletal anatomy with mid-sagittal larynx view — Stock Photo
    Lateral larynx and skeletal anatomy with mid-sagittal larynx view
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoans, amoebas in oral cavity, digital illustration.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Barefoot woman meditating in rock cavity — Stock Photo
    Barefoot woman meditating in rock cavity
    Entamoeba gingivalis parasitic pathogen single-celled protozoan, amoeba in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoan, amoeba in oral cavity, digital illustration.
    Human skull anatomy with transparent calvarium — Stock Photo
    Human skull anatomy with transparent calvarium
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer.
    Lateral view of human skull anatomy — Stock Photo
    Lateral view of human skull anatomy
    Tapeworm cysts in the brain — Stock Photo
    Tapeworm cysts in the brain