TY  - RPRT
TI  - Double-blind crossover versus parallel groups in hypertension.
AU  - P S Sever
AU  - N R Poulter
AU  - C S Bulpitt
PY  - 1989
DO  - 10.1016/0002-8703(89)90763-1
UR  - https://pubmed.ncbi.nlm.nih.gov/2919552/
ID  - 2919552
ER  -