Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Pedro Salguero García <pedrosalguerog@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: https://academic.oup.com/bioinformatics/article/31/3/397/2366078
      From: man/splsdrcox.Rd
            man/splsdrcox_penalty.Rd
      Status: 403
      Message: Forbidden
    URL: https://academic.oup.com/biomet/article-abstract/69/1/239/243012?redirectedFrom=fulltext
      From: man/plot_proportionalHazard.Rd
      Status: 403
      Message: Forbidden
    URL: https://academic.oup.com/biomet/article-abstract/81/3/515/257037?redirectedFrom=fulltext
      From: man/plot_proportionalHazard.Rd
      Status: 403
      Message: Forbidden
    URL: https://jamanetwork.com/journals/jama
      From: man/eval_Coxmos_models.Rd
      Status: 403
      Message: Forbidden
    URL: https://www.sciencedirect.com/science/article/abs/pii/S0167947304000271?via%3Dihub
      From: man/splsicox.Rd
      Status: 403
      Message: Forbidden
    URL: https://www.sciencedirect.com/science/article/abs/pii/S0169743907001931?via%3Dihub
      From: man/splsdrcox.Rd
            man/splsdrcox_penalty.Rd
      Status: 403
      Message: Forbidden
  Please use DOIs for the following publisher URLs:
    https://academic.oup.com/bioinformatics/article/31/3/397/2366078
    https://www.sciencedirect.com/science/article/abs/pii/S0167947304000271?via%3Dihub
    https://www.sciencedirect.com/science/article/abs/pii/S0169743907001931?via%3Dihub

Check: for detritus in the temp directory, Result: NOTE
  Found the following files/directories:
    ‘RtmpBtx5H1Petal.png’ ‘RtmpBtx5H1Sepal.png’