research, experiment and medical trial being done by a scientist in a lab, science facility or hospital. one young, serious and professional researcher organizing, sorting or making a discovery - 實驗室 個照片及圖片檔
scientist, microscope and analysis in lab for healthcare, innovation and development in stem cell research. black woman, investigation and experiment with biotech for dna, exam or test for bacteria - 實驗室 個照片及圖片檔