“…There has been some research into the effects of the 2010 Spanish anti-smoking law on SHS exposure in adults (Villaverde Royo et al, 2012;Perez-Rios et al, 2014;Sureda et al, 2014;Sánchez-Rodríguez et al, 2015). However, it is also important to establish whether the stricter smoking ban has had an impact on the reduction of exposure in children, by evaluating, for example, the cotinine load in this population.…”