Use of primary data leads to unsupportable conclusions and policy options.
Herz
William C
WC
The Fertilizer Institute, Washington, DC 20024, USA. wcherz@tfi.org
de Peralta
Jesus I Grave
JI
D000544:Alzheimer Disease / Q000453:epidemiology* / Q000401:mortality; D004781:Environmental Exposure / Q000009:adverse effects* / Q000706:statistics & numerical data; D006291:Health Policy; D006801:Humans; D011320:Primary Health Care