Serum can be elevated.Logical formLearned from2 sentences. Trains may run on elevated tracks.Logical formLearned from2 sentences. A (serum afp level) can be elevated.Logical formLearned from2 sentences. (Alpha-fetoprotein levels) can be elevated.Logical formLearned from2 sentences. A (branch line) can be elevated.Logical formLearned from2 sentences. Stations can be elevated.Logical formLearned from2 sentences. Some structures can be elevated.Logical formLearned from2 sentences. An (expressway route) can be elevated.Logical formLearned from2 sentences. A face can be elevated.Logical formLearned from2 sentences. (Liver enzyme numbers) can be elevated.Logical formLearned from2 sentences. Elements can be elevated.Logical formLearned from2 sentences. A ventilation can be elevated.Logical formLearned from2 sentences. A city can be elevated.Logical formLearned from2 sentences. A (ground floor) can be elevated.Logical formLearned from2 sentences. Hormone can be elevated.Logical formLearned from2 sentences.