[Analysis on Re-classifcation Management Procedure of Medical Devices in the United States].

PMID: 30977610 · 2019-03-30

Y, u, e, , W, a, n, g, ;, , C, h, u, n, q, i, n, g, , Z, h, a, n, g, ;, , J, i, a, , Z, h, e, n, g, ;, , S, h, i, f, u, , G, u, o, ;, , R, u, i, h, o, n, g, , M, u, ;, , X, i, n, h, u, a, , Y, u