The researchers admit that they had no way of measuring other potential sources of exposure outside the home.

BBC: Passive smoke greater in the home

From a technical standpoint, this is a time to be a cautious buyer, as measuring the potential risk when considering any new positions is more important than thinking about any potential reward.

FORBES: 3 Sectors Leading the Charge

In the process control sector he sees Rudolph Technologies, Nanometrics, Camtek and Nova Measuring Instruments as potential sellers.

FORBES: Novellus Spikes As Street Hunts For Next Semi Equip Deals