| Search set | Data base | ||||
| Pubmed | Embase | Scopus | Web of Science | Science Direct | |
| #1 | climate | climate | climate | climate | climate |
| #2 | weather | weather | weather | weather | weather |
| #3 | Ambient temperature | Ambient temperature | Ambient temperature | Ambient temperature | Ambient temperature |
| #4 | temperature | temperature | temperature | temperature | temperature |
| #5 | heat | heat | heat | heat | heat |
| #6 | hot | hot | hot | hot | hot |
| #7 | cold | cold | cold | cold | cold |
| #8 | #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 | #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 | #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 | #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 | #1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 |
| #9 | “external cause” | “external cause” | “external cause” | “external cause” | “external cause” |
| #10 | #8 and #9 | #8 and #9 | #8 and #9 | #8 and #9 | #8 and #9 |