who owns parliament cigarettes White Filter Kings Box - CTN Philip Morris: Parliament Cigarettes, 1950s-1960s

Retrieved May 20, 2020, from [8] (n.d.)

You supply your own loose tobacco and pre-made King Size or 100mm tubes, sold separately

Atrophic scars are broadly described as exhibiting generalised cutaneous atrophy resulting in loss of cutaneous cells in the epidermis, although they appear clinically as a loss of normal dermis

As you correctly point out, chemical levels in dual users may be similar to normal smokers, but you have to look at actual changes in health

Ans- While they can both have a runny nose or stuffiness, acute sinusitis classically involves facial pressure, yellow or green thick nasal discharge, and more than 10 days of ill-defined worsening