Skepticism Mea Culpa
"My skepticism in 1962 needs an explanation ... Those of us ... familiar
with the complexities of teratogenicity had to lean backward and to demand
strict proofs... investigators in Germany used questionnaires... thalidomide,
or Contergan, was in eighth place in the list of associated factors ..
the questionnaire did not bring the correct answer. A guess from the mother
of an affected child did." (from Josef Warkany, "Why I Doubted That Thalidomide
Was the Cause of the Epidemic of Limb defects of 1959 to 1961". Teratology