KUALA LUMPUR, Malaysia - Next month's Malaysian Formula One Grand Prix will be the last time cigarette companies will be able to use the romance of racing to sell their tobacco products in Malaysia. Health activists here can at least in part thank the World Health Organization's treaty on tobacco control, which goes into effect Sunday in 40 countries, for prompting the new limits on advertising. Malaysia is joining a growing list of nations that severely restrict tobacco sponsorship of sporting events - long a favorite publicity playground of cigarette sellers - for public health reasons. The new anti-tobacco rules...