Are postal prompts really ineffective?
Edwards
R
R
Murphy
P
P
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D003327:Coronary Disease / Q000517:prevention & control*; D005194:Family Practice; D006801:Humans; D011177:Postal Service; D017010:Reminder Systems / Q000592:standards*
D000319:Adrenergic beta-Antagonists