S original by Jim Ramsey <ramsay@psych.mcgill.ca>. 
        R port by  Brian Ripley <Brian.Ripley@R-project.org>.

Andre M. de Roos [aut, cre],
  Ernst Hairer [ctb],
  Gerhard Wanner [ctb]

Bo Liu [aut, cre],
  Xiaoxiao Zhou [ctb],
  Fan Li [ctb]

Benjamin Christoffersen [cre, aut] (ORCID:
    <https://orcid.org/0000-0002-7182-1346>)

Dave Armstrong [aut, cre],
  Robert Andersen [aut],
  Justin Esarey [cph],
  John Fox [cph],
  Michael Friendly [cph],
  Adrian Bowman [cph],
  Adelchi Azzalini [cph]

Richard Feiss [aut, cre],
  University of Minnesota [cph]

Rogério Boff Borges [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-2548-1889>),
  Guilherme Serpa Azambuja [aut] (ORCID:
    <https://orcid.org/0000-0001-6246-4538>),
  Aline Castello Branco Mancuso [aut] (ORCID:
    <https://orcid.org/0000-0001-6033-8335>),
  Vanessa Bielefeldt Leotti [aut] (ORCID:
    <https://orcid.org/0000-0003-3860-9367>),
  Vânia Naomi Hirakata [aut] (ORCID:
    <https://orcid.org/0000-0003-4645-2080>),
  Suzi Alves Camey [aut] (ORCID: <https://orcid.org/0000-0002-5564-081X>),
  Stela Maris de Jezus Castro [aut] (ORCID:
    <https://orcid.org/0000-0001-5862-6709>),
  Gustavo Thomas [aut] (ORCID: <https://orcid.org/0000-0002-4327-8307>),
  Hospital de Clínicas de Porto Alegre [fnd]

Luann C. Jung, Haiyan Wang, Diego Maldonado, Sharad Silwal, Siti Tolos, Suojin Wang

Javad zahiri [aut],
  Alireza mohammadi [aut, cre],
  Saber mohammadi [aut]

Chengxin Yang [aut, cre],
  Chao Cheng [aut],
  Fan Li [aut],
  Fan Li [aut]

Blondeau Da Silva Stephane [aut, cre] - Da Silva Anne [aut].

Pedro H. C. Sant'Anna <pedro.h.santanna@vanderbilt.edu>, Xiaojun Song
    <sxj@gsm.pku.edu.cn>

Jungmin Shin [aut, cre],
  Seung Jun Shin [aut],
  Andreas Artemiou [aut]

Huzhang Mao <huzhangmao@gmail.com>, Liang Li <LLi15@mdanderson.org>

Tianhui Zhou [aut],
  Guangyu Tong [aut],
  Fan Li [aut],
  Laine Thomas [aut],
  Fan Li [aut],
  Yukang Zeng [cre]

Jason Moy [aut, cre] (ORCID: <https://orcid.org/0000-0001-8795-3311>)

William Revelle [aut, cre] (ORCID:
    <https://orcid.org/0000-0003-4880-9610>)