YESTERDAY Aids expert Shao Yiming says the central government may have to consider the compulsory acquisition of some drug patents. IN SESSION 'Not only has the number of patients been climbing every year, but also so have their medical requirements' NPC deputy Wang Chunlan AGENDA TODAY CPPCC session closes after approval of personnel changes including election of outgoing Hong Kong Chief Executive Tung Chee-hwa as vice-chairman. TOMORROW The NPC is expected to elect President Hu Jintao as chairman of the state Central Military Commission. MONDAY The NPC ends its annual conference after deputies vote on the various work reports by the government and the anti-secession law.