C. could affect Mr. Booker closer to home: Upheaval on the Newark City Council has complicated the path to replacing Mr. Booker if he were to leave the mayor's office before November.

WSJ: Senate Odds Reshuffled For Newark Mayor Booker

Idenix is developing drugs for Hepatitis B and C, diseases that affect 520 million people.

FORBES: Splicing For Dollars

The team said birth by C-section might affect bacteria in the gut, which in turn affects the way food is digested.

BBC: C-section 'may double risk of childhood obesity'

Chronic infection with hepatitis C virus (HCV) is estimated to affect 170 million people worldwide, and more than five million in Europe.

BBC: Better treatment for Hepatitis C

"Our goal is to show that some decision about elective C-sections may cause changes that parents can't see but nevertheless affect development, " says Kozyrskyj.

CNN: Connection between dirty diapers, childhood health

"He sees we have a responsibility and opportunity to affect the way billions of people live their lives, " says Jamie C.

FORBES: Magazine Article

For more on this point and for a sophisticated explanation of how interest rates affect the calculations in commonly used estate planning strategies, see this article by Diana S.C.

FORBES: Family Loans Still Attractive After IRS Releases April AFR Interest Rate