TY - RPRT TI - An improved control valve for sphygmomanometers. AU - S C Mishra AU - S Conceicao AU - D N Kerr AU - T H Frost AU - D C Mitchell PY - 1977 DO - 10.3109/03091907709160632 UR - https://pubmed.ncbi.nlm.nih.gov/886601/ ID - 886601 ER -