healthiest dip tobacco Dipping Smokeless Tobacco: The Lesser of

"E-cigarettes are the most commonly used tobacco product among both middle and high school students in Ohio," the analysis reads

A significant race-by-gender interaction was also noted

You can take a hot, steamy shower or bath twice daily so the steam can moisten the air passageways in your chest, or use a humidifier or vaporizer to get a similar effect

These potential confounders were selected based on the literature (i.e., based on their known/hypothetic correlations with both the exposures [i.e., maternal smoking] and outcomes [i.e., congenital anomalies]) as well as the information that was available on the birth certificate