TY - RPRT TI - Drop spectrometer: a non-obstructive, non-interfering instrument for analyzing hydrodynamic properties of human urination. AU - N R Zinner AU - R C Ritter AU - A M Sterling AU - D C Harding PY - 1969 DO - 10.1016/s0022-5347(17)62453-4 UR - https://pubmed.ncbi.nlm.nih.gov/5771265/ ID - 5771265 ER -