Search strategy in PubMed
| Search | Search terms |
| 1 | Smoking [tw] OR tobacco [tw] OR snuff [tw] OR cigarette [tw] OR Cigar [tw] OR pipe [tw] OR chewing [tw] OR Smoking [MeSH terms] OR nicotine [tw] OR tabacum [tw] OR nicotiana [tw] OR waterpipe [tw] OR e-cig [tw] OR e-cigarette [tw] |
| 2 | (Hypertension [tw] OR Hypertension [MeSH terms] OR high blood pressure [tw] OR systolic hypertension [tw] OR diastolic hypertension [tw] OR Hypertensive patients OR Raised blood pressure ([tw]) |
| 3 | (Diabetes mellitus [tw] OR diabetes mellitus [MeSH terms] OR high blood sugar [tw] OR hyperglycemia [tw] OR diabetes patients OR Glucose intolerance [tw]) |
| 4 | (# 1 AND # 3) OR (# 2 AND # 3) |
| 5 | (((((‘Africa’[MeSH] OR Africa* [tw] OR Algeria[tw] OR Angola[tw] OR Benin[tw] OR Botswana[tw] OR ‘Burkina Faso’[tw] OR Burundi [tw] OR Cameroon [tw] OR ‘Canary Islands’ [tw] OR ‘Cape Verde’ [tw] OR ‘Central African Republic’ [tw] OR Chad [tw] OR Comoros [tw] OR Congo [tw] OR ‘Democratic Republic of Congo’ [tw] OR Djibouti [tw] OR Egypt [tw] OR ‘Equatorial Guinea’ [tw] OR Eritrea [tw] OR Ethiopia [tw] OR Gabon [tw] OR Gambia [tw] OR Ghana [tw] OR Guinea [tw] OR ‘Guinea Bissau’ [tw] OR ‘Ivory Coast’ [tw] OR ‘Cote d’Ivoire’ [tw] OR Jamahiriya [tw] OR Jamahiryia [tw] OR Kenya [tw] OR Lesotho [tw] OR Liberia [tw] OR Libya [tw] OR Libia [tw] OR Madagascar [tw] OR Malawi [tw] OR Mali [tw] OR Mauritania [tw] OR Mauritius [tw] OR Morocco [tw] OR Mozambique [tw] OR Mocambique [tw] OR Namibia [tw] OR Niger [tw] OR Nigeria [tw] OR Principe [tw] OR Reunion [tw] OR Rwanda [tw] OR ‘Sao Tome’ [tw] OR Senegal [tw] OR Seychelles [tw] OR ‘Sierra Leone’ [tw] OR Somalia [tw] OR ‘South Africa’ [tw] OR ‘St Helena’ [tw] OR Sudan [tw] OR Swaziland [tw] OR Tanzania [tw] OR Togo [tw] OR Tunisia [tw] OR Uganda [tw] OR ‘Western Sahara’ [tw] OR Zaire [tw] OR Zambia [tw] OR Zimbabwe [tw] OR ‘Central Africa’ [tw] OR ‘Central African’ [tw] OR ‘West Africa’ [tw] OR ‘West African’ [tw] OR ‘Western Africa’ [tw] OR ‘Western African’ [tw] OR ‘East Africa’ [tw] OR ‘East African’ [tw] OR ‘Eastern Africa’ [tw] OR ‘Eastern African’ [tw] OR ‘North Africa’ [tw] OR ‘North African’ [tw] OR ‘Northern Africa’ [tw] OR ‘Northern African’ [tw] OR ‘South African’ [tw] OR ‘Southern Africa’ [tw] OR ‘Southern African’ [tw] OR ‘sub Saharan Africa’ [tw] OR ‘sub Saharan African’ [tw] OR ‘subSaharan Africa’ [tw] OR ‘subSaharan African’ [tw]) NOT (‘guinea pig’ [tw] OR ‘guinea pigs’ [tw] OR ‘aspergillus niger’ [tw]))))) |
| 6 | # 4 AND # 5 |