by Nicholls, R S, Restrepo, M I, Duque, S, Lopez, M C, Corredor, A
Published in Memórias do Instituto Oswaldo Cruz (1994)

by Escalante, Marcela, Montilla, Marleny, Nicholls, R. Santiago, Del Portillo, Patricia, Puerta, Concepción J.
Published in Biomédica (01.06.1997)

by Marcela Escalante, Marleny Montilla, R. Santiago Nicholls, Patricia Del Portillo, Concepción J. Puerta
Published in Biomédica (01.06.1997)