resumo The authors wish to thank Prof. Dorit Schuller and Inês Mendes for the use of and assistance with the HPLC column and all the technical staff at the CBMA for their skilful technical assistance.
autores Casal, Margarida Azevedo-Silva, J. Collins, Tony Azevedo Silva, Joao Anabela Goncalves Branca, F. Machado, Raul Margarida Paula Pedra Amorim Casal Azevedo-Silva, J.