[Phone prompt or mailed reminder for increasing response rate among investigators? A randomized trial in the Sentinelles network].
S
S
Czernichow
A
A
Flahault
D001291:Attitude of Health Personnel; D015709:Correspondence as Topic; D003365:Costs and Cost Analysis; D006801:Humans; D009042:Motivation; D010821:Physicians, Family / Q000523:psychology*; D017010:Reminder Systems / Q000191:economics / Q000592:standards*; D012108:Research Personnel / Q000523:psychology*; D018571:Sentinel Surveillance; D011795:Surveys and Questionnaires / Q000191:economics / Q000592:standards*; D013689:Telephone / Q000191:economics / Q000592:standards*