ALLENTOWN, Pa. (AP) — Pennsylvania's top health official has assured doctors that a new gas-drilling law will allow them to talk to their patients about proprietary chemicals used in the hydraulic fracturing process — and share the information with public health agencies and regulatory bodies as they see fit.The Pennsylvania Medical Society started questioning the new law almost two months ago. On Wednesday, the group issued a statement saying that Health Secretary Dr. Eli Avila had clarified the issue in a letter.The Associated Press reported last week that doctors were worried the confidentiality provision in the Marcellus Shale law was too vague.Last-minute legislative negotiations stripped up to $2 million in new Health Department funding for research on the public health impacts of gas drilling.

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