11.   The CDC doctors gave three briefings to tribal members on molar pregnancies and miscarriages.

a. + pregnancy >>共 162
teen 16.65%
unwanted 14.08%
teen-age 11.61%
teenage 5.80%
unplanned 2.95%
early 2.85%
first 2.66%
difficult 2.57%
unintended 2.38%
high-risk 2.28%
molar 1.05%
molar + n. >>共 28
mass 33.98%
enthalpy 15.53%
pregnancy 10.68%
tooth 4.85%
constant 3.88%
entropy 3.88%
quantity 3.88%
concentration 2.91%
volume 1.94%
attraction 0.97%
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