LONDON - The parents of missing British girl Madeleine McCann have said it could take "just one phone call" for her to be found as they marked a month since the four-year-old disappeared from a villa in Portugal.
Gerry and Kate McCann have maintained a high-profile campaign tofind their daughter since she went missing from a villa on the Algarve on May 3.
"It is incredibly difficult not having Madeleine here," the couple said in a statement.
"As every day, and every week, becomes a month, we still believe she is out there alive and we remain positive and determined that we will find her soon with everyone's help.
"We do realise it is just one phone call that we need. We just want her home."
The parents, who have travelled to Spain and met Pope Benedict to publicise their appeals, are reported to be planning to travel to Berlin and Amsterdam this week.
In an interview with German newspaper Berliner Morgenpost on Sunday, Gerry McCann said there was still hope.
"We talk about hope and as long as there is hope, we are not giving up," he said. "At the moment, we are very hopeful."
Kate McCann said she hoped Madeleine was safe and was being cared for.
"We know there are evil people out there, but there are also confused people. We do not know who this person is. We hope the latter."
