Positional variation in the Whitaker test.
Ellis JH, Campo RP, Marx MV, Cohan RH, Platt JF, Sonda LP, Faerber GJ, Kim DH.
Ellis JH, et al. Among authors: cohan rh.
Radiology. 1995 Oct;197(1):253-5. doi: 10.1148/radiology.197.1.7568832.
Radiology. 1995.
PMID: 7568832