A layer can be constituted-of-or-filled-with ions.Logical formLearned from7 sentences. Ions may undergo bindings.Logical formLearned from7 sentences. An ion can be trivalent.Logical formLearned from7 sentences. An ion can be isolated.Logical formLearned from7 sentences. Ions may undergo movements.Logical formLearned from7 sentences. A (calcium ion concentration) can be intracellular.Logical formLearned from7 sentences. (Product ions) may be analyzed.Logical formLearned from7 sentences. A radius may pertain-to an ion.Logical formLearned from7 sentences. An (ion source) can be negative.Logical formLearned from7 sentences. Ions can be ionized.Logical formLearned from7 sentences. Properties can be constituted-of-or-filled-with ions.Logical formLearned from7 sentences. Calcium can be an ion.Logical formLearned from7 sentences. Masses may pertain-to ions.Logical formLearned from7 sentences. Ions can be heterogenous.Logical formLearned from7 sentences. An (ion beam milling) can be focused.Logical formLearned from7 sentences.