The following excerpt is from Carey v. Berryhill, Case No.: 16cv2891-CAB (BLM) (S.D. Cal. 2017):
is required to make a "threshold showing" that (1) she has a medically determinable impairment or combination of impairments and (2) the impairment or combination of impairments is severe. See 20 C.F.R. 404.1520(c), 416.920(c). The burden of proof is on the claimant to establish a medically determinable severe impairment. Id.; see also Uy v. Colvin, 2015 WL 351438, at *8 (E.D. Cal. Jan. 26, 2015).
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