Letters
URI
http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49892011000300010https://iris.paho.org/handle/10665.2/9550
Citation
Anon (2011) Letters. Rev Panam Salud Publica;29(3) 211-212,mar. 2011. Retrieved from http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49892011000300010