vivo 4dOS- Ai Vivo 4D + 2D. 13)Do not use massager in close proximity to loose clothing or jewelry. 14)Keep long hair away from massager while in use. 15)Use heated surfaces carefully.Maymicroscopy for in vivo 4D imaging of zebra fish heart beating Meng Zhang 1 , Renjian Li 1,2 , Songnian Fu 3 , Sunil Kumar 4 , James Mcginty 4 ,YuwenQin 3 and Lingling Chen 2