African American doctor presenting on bacterial/infectious disease at medical conference
Crop woman giving lecture about ecology
Lecture hall is full with medical students, professor is giving a lecture.
Selective focus shot of paramedic specialist standing at desk with mannequin on it giving lecture about emergency procedures
Medium shot of African American doctor wearing protective mask giving lecture about disease origin and treatment
female business coaching is giving lecture for specialists of marketing and management
Medium section shot of unrecognizable African American medical worker making presentation at conference or giving lecture to students
professional business coach is giving lecture for specialists and directors of big company
African American professor giving a lecture and explaining lesson to students at University library
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African American male healthcare specialist in medical mask sitting in clinic office and prescribing treatment giving pills to senior
African american physician giving medical advice to sick patient in hospital waiting area, talking about medicine against disease and healthcare insurance. Specialist doing consultation with person.