https://www.scielo.br/j/rbfar/a/wPdPZrdHnL3BsMHJBLTPDPv/?lang=pt

https://www.scielo.br/j/rbme/a/Z8PKY9Vrmf98Lhj8PhmMdcS/?lang=pt

https://portalarquivos2.saude.gov.br/images/pdf/2014/dezembro/30/II-snpmfaf-plantago-ovata.pdf