This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

A physician in Porter Ranch wants to collaborate with outside researchers to study a pattern of health symptoms he says has emerged in almost 50 patients he’s treated related to the Aliso Canyon natural gas leak.

Mary Beth McDade reports for the KLTA 5 News at 10 on Feb. 6, 2017.