(Air attacks) can be periodic.Logical formLearned from8 sentences. Comebacks can be periodic.Logical formLearned from8 sentences. Clampdowns can be periodic.Logical formLearned from8 sentences. Frenzies can be periodic.Logical formLearned from8 sentences. Signals can be periodic.Logical formLearned from8 sentences. An upgrading can be periodic.Logical formLearned from8 sentences. A headache can be periodic.Logical formLearned from8 sentences. A self-examination can be periodic.Logical formLearned from8 sentences. Domains can be periodic.Logical formLearned from8 sentences. (Research reports) can be periodic.Logical formLearned from8 sentences. Safety can be periodic.Logical formLearned from8 sentences. (Monitoring visits) can be periodic.Logical formLearned from8 sentences. A (programme review) can be periodic.Logical formLearned from8 sentences. (Review processes) can be periodic.Logical formLearned from8 sentences. Exacerbations can be periodic.Logical formLearned from8 sentences.