Atriði 1-14
Effectiveness (1) |
Félagsleg viðfangsefni (1) |
Fíkn (1) |
Intention to treat (1) |
Megindlegar rannsóknir (1) |
Non response (1) |
Per protocol (1) |
Proactive (1) |
Questionnaire (1) |
Reactive (1) |
Responder only analysis (1) |
Reykingar (1) |
Smoking (1) |
Telephone (1) |
Atriði 1-14