A person may get a std.Logical formLearned from4 sentences. Rates can be constituted-of-or-filled-with (incident stds).Logical formLearned from4 sentences. Studies may show stds on a rise.Logical formLearned from4 sentences. Stds may undergo a contraction.Logical formLearned from4 sentences. Stds can be unwanted.Logical formLearned from4 sentences. (Std services) may be provided.Logical formLearned from4 sentences. (Std patients) can be male.Logical formLearned from4 sentences. (Std services) can be improved.Logical formLearned from4 sentences. Stds can be common.Logical formLearned from4 sentences. A (std treatment) can be effective.Logical formLearned from4 sentences. Services can be for stds.Logical formLearned from4 sentences. Stds can be selected.Logical formLearned from4 sentences. Stds can be in the industrialized world.Logical formLearned from4 sentences. A std may undergo a treatment.Logical formLearned from4 sentences. Facts can be about stds.Logical formLearned from4 sentences.