Id |
Subject |
Object |
Predicate |
Lexical cue |
T30 |
0-2 |
Sentence |
denotes |
2. |
T31 |
3-10 |
Sentence |
denotes |
Methods |
T32 |
11-142 |
Sentence |
denotes |
The literature research was performed with MEDLINE (PubMed) and Google Scholar using search terms connected with Boolean operators. |
T33 |
143-247 |
Sentence |
denotes |
Two separate searches were performed for MetHb and COHb to make the literature research process simpler. |
T34 |
248-573 |
Sentence |
denotes |
For case one (MetHb and COVID-19) the keywords “methemoglobinemia”, “methemoglobinemia”, ”methemoglobin”, “methaemoglobin”, “COVID-19” and “COVID19” were used; for case two (COHb and COVID-19) they were “carboxy-hemoglobinemia”, “carboxyhaemoglobinaemia”, ”carboxyhemoglobin”, “carboxyhaemo-globin”, “COVID-19” and “COVID19”. |
T35 |
574-623 |
Sentence |
denotes |
Relevant studies published in 2020 were searched. |
T36 |
624-740 |
Sentence |
denotes |
In addition, the reference lists of relevant published articles were also manually searched for additional articles. |
T37 |
741-893 |
Sentence |
denotes |
The result of the literature research was screened for articles (studies or case reports) that report measurement of MetHb or COHb in COVID-19 patients. |
T38 |
894-1067 |
Sentence |
denotes |
The exclusion criteria were articles not reporting MetHb or COHb measurements or articles published in non-academic journals, reviews, dissertations or conference abstracts. |
T39 |
1068-1121 |
Sentence |
denotes |
Articles published on preprint servers were included. |