8065
Here we show that during the first postnatal week , a subset of CA3 - CA1 synapses express postsynaptically induced LTP that is tightly associated with a robust decrease in synaptic facilitation , consistent with an increase in release probability ( P ( r ) ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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