Links:
[1] https://saludnl.gob.mx/drupal/sites/default/files/u249/25%20CONV%202021.doc
[2] https://saludnl.gob.mx/drupal/sites/default/files/u249/69%20GASES%20MEDICINALES.docx
[3] https://saludnl.gob.mx/drupal/sites/default/files/u249/BRN3C2AF4CA2449_0000056317.pdf
[4] https://saludnl.gob.mx/drupal/sites/default/files/u249/BRN3C2AF4CA2449_0000057594.pdf
[5] https://saludnl.gob.mx/drupal/sites/default/files/u249/BRN3C2AF4CA2449_0000057853.pdf
[6] https://saludnl.gob.mx/drupal/sites/default/files/u249/BRN3C2AF4CA2449_0000057856.pdf
[7] https://saludnl.gob.mx/drupal/sites/default/files/u249/BRN3C2AF4CA2449_0000057860.pdf