function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acal, Dale Ann P. & Wiesner, Juergen & Nuneza, Olga M.', 1],
    ['Anichtchenko, Alexander & Wiesner, Jürgen', 10],
    ['Serrano, Artur R. M.', 2],
    ['Serrano, Artur R. M. & Capela, Rúben A.', 1],
    ['Wiesner, Jürgen & Anichtchenko, Alexander', 19],
    ['Wiesner, Jürgen & Bandinelli, Aligi & Matalin, Andrey', 9],
    ['Wiesner, Jürgen & Constant, Jérôme', 1],
    ['Wiesner, Jürgen & Phyu, Moe Hnin & Hori, Michio', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);