Am J Public Health Nations Health. 1929 Aug;19(8):911-2. doi: 10.2105/ajph.19.8.911.
American journal of public health and the nation's health
[No authors listed]
PMID: 18012816 PMCID: PMC1581138 DOI: 10.2105/ajph.19.8.911
[No abstract available.]