Am J Public Health Nations Health. 1936 Aug;26(8):813-8. doi: 10.2105/ajph.26.8.813.
American journal of public health and the nation's health
B K Spector
PMID: 18014483 PMCID: PMC1562814 DOI: 10.2105/ajph.26.8.813
[No abstract available.]