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Thyroid conditions may make getting pregnant impossible.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

The spatial distribution of trees in three separate stands of different ages on Vancouver Island (da The spatial distribution of trees in three separate stands of different ages on Vancouver Island (da
aby pygmy hippopotamus stands near its parent at a zoo in Jihlava, Czech Republic aby pygmy hippopotamus stands near its parent at a zoo in Jihlava, Czech Republic
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The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
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Video: Membrane transport proteins - pores, gated channels and pumps

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