I've come to collect a parcel <a href=" http://www.ashr.edu.au/generic-viagra-cheap-prices.pdf ">does viagra generics work</a> MUMBAI, Aug 2 (Reuters) - India has revoked a patent grantedto GlaxoSmithKline Plc for its breast cancer drugTykerb, a decision that follows a landmark India court rulingdisallowing patents for incremental innovations that was a blowto global pharmaceutical giants.