Mutation butterfly effect: Study reveals how single change triggers autism gene network

The Se­cu­ri­ties and Ex­change Com­mis­sion said a for­mer Mer­ck ex­ec­u­tive agreed to pay $82,000 af­ter al­leg­ing he pur­chased shares of a com­pa­ny right be­fore it was ac­quired by the drug­mak­er. Nir­dosh

Fred Pelzman is an associate professor of medicine at Weill Cornell, and has been a practicing internist for nearly 30 years. He is medical director