c(
person(given = "Alessandro",
family = "Gasparini",
role = c("aut", "cre"),
email = "alessandro.gasparini@ki.se",
comment = c(ORCID = "0000-0002-8319-7624")),
person(given = "Hojjat",
family = "Salmasian",
role = "ctb",
email = "hsalmasian@bwh.harvard.edu",
comment = "ICD-9-CM scores"),
person(given = "Jonathan",
family = "Williman",
role = "ctb",
email = "jonathan.williman@otago.ac.nz",
comment = c(ORCID = "0000-0001-5080-4435"))
)

c(person(given = "Alessandro",
family = "Gasparini",
role = c("aut", "cre"),
email = "alessandro.gasparini@ki.se",
comment = c(ORCID = "0000-0002-8319-7624")),
person(given = "Hojjat",
family = "Salmasian",
role = "ctb",
email = "hsalmasian@bwh.harvard.edu",
comment = "ICD-9-CM scores"),
person(given = "Jonathan",
family = "Williman",
role = "ctb",
email = "jonathan.williman@otago.ac.nz",
comment = c(ORCID = "0000-0001-5080-4435")))

Computing comorbidity indices and scores such as the weighted Charlson
score (Charlson, 1987 <doi:10.1016/0021-9681(87)90171-8>) and the Elixhauser
comorbidity score (Elixhauser, 1998 <doi:10.1097/00005650-199801000-00004>)
using ICD-9-CM or ICD-10 codes (Quan, 2005 <doi:10.1097/01.mlr.0000182534.19832.83>).
Australian and Swedish modifications of the Charlson Comorbidity Index are available
as well (Sundararajan, 2004 <doi:10.1016/j.jclinepi.2004.03.012> and Ludvigsson, 2021
<doi:10.2147/CLEP.S282475>).
c(person(given = "Alessandro",
family = "Gasparini",
role = c("aut", "cre"),
email = "alessandro.gasparini@ki.se",
comment = c(ORCID = "0000-0002-8319-7624")),
person(given = "Hojjat",
family = "Salmasian",
role = "ctb",
email = "hsalmasian@bwh.harvard.edu",
comment = "ICD-9-CM scores"),
person(given = "Jonathan",
family = "Williman",
role = "ctb",
email = "jonathan.williman@otago.ac.nz",
comment = c(ORCID = "0000-0001-5080-4435")),
person(given = "Sing Yi",
family = "Chia",
role = "ctb",
email = "cxycsy@hotmail.com",
comment = c(ORCID = "0000-0002-7591-3141")),
person(given = "Edmund",
family = "Teo",
role = "ctb",
email = "ed_teo8@yahoo.com.sg",
comment = c(ORCID = "0000-0003-3936-4082")))
checkmate, data.table, stats, stringi, utils
Alessandro Gasparini [aut, cre]
(<https://orcid.org/0000-0002-8319-7624>),
Hojjat Salmasian [ctb] (ICD-9-CM scores),
Jonathan Williman [ctb] (<https://orcid.org/0000-0001-5080-4435>),
Sing Yi Chia [ctb] (<https://orcid.org/0000-0002-7591-3141>),
Edmund Teo [ctb] (<https://orcid.org/0000-0003-3936-4082>)