SAN FRANCISCO -- Someone who supplies marijuana to a patient who has a doctor's approval for it can be prosecuted for drug-dealing, the state Supreme Court ruled today in a narrow interpretation of California's medical marijuana law. Advocates on both sides of the case agreed that the unanimous ruling would encourage Californians to obtain medical marijuana from patient cooperatives, which are authorized by a 2003 state law, rather than from an individual supplier. "Ideally, it (the ruling) won't have a tremendous effect," said Joseph Elford, a lawyer for Americans for Safe Access, a pro-medical marijuana group. "Patients will now increasingly...