United States of America: Difference between revisions
WikiModEn2 (talk | contribs) →Early twentieth century: Add text and citation. |
WikiModEn2 (talk | contribs) →Early twentieth century: Typo |
||
| Line 226: | Line 226: | ||
}}</ref> In those long ago days, the true causes of cancer were unknown so it was impossible to disprove Wolbarst's falsehoods. | }}</ref> In those long ago days, the true causes of cancer were unknown so it was impossible to disprove Wolbarst's falsehoods. | ||
Laumann et al., writing in 1997, reported an incidence of circumcision of 31 percent in | Laumann et al., writing in 1997, reported an incidence of circumcision of 31 percent in 1933.<ref name="laumann1931">{{REFjournal | ||
|last=Laumann | |last=Laumann | ||
|first=Edward O. | |first=Edward O. | ||