Chemical composition and acetylcholinesterase inhibitory activity of essential oils of Myrceugenia myrcioides (Cambess.) O. Berg and Eugenia riedeliana O. Berg, Myrtaceae - Souza, Amanda de; Lopes, Elaine Monteiro Cardoso; Silva, Michelle C. da; Cordeiro, Inês; Young, Maria Claudia Marx; Sobral, Marcos Eduardo Guerra; Moreno, Paulo Roberto Hrihorowitsch (Revista Brasileira de Farmacognosia, 2010)