Thailand's decision to break the patents on two major commercial drugs to allow the sale of cheaper generic versions was applauded Tuesday by health activists but questioned by the pharmaceutical industry. On Monday, Thai Public Health Minister Mongkol Na Songkhla said it would allow the sale of generic versions of Kaletra, produced by...Abbott Laboratories to treat HIV and AIDS, and Plavix, a drug for heart patients sold by...Sanofi-Aventis and...Bristol-Myers Squibb Co. The government action drew criticism from Thailand's Pharmaceutical Research & Manufacturers Association, ...[the] International Federation of Pharmaceutical Manufacturers & Associations... [and the] American Chamber of Commerce in Thailand...