function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Giraldes, Bruno Welter & Al-Maslamani, Ibrahim & Smyth, David', 3],
    ['Kumar, Biju A. & Kumar, M. Sushil & Galil, Bella S.', 2],
    ['Ng, Peter K. L. & Priyaja, P. & Kumar, A. Biju', 1],
    ['Ng, Peter K. L. & Türkay, Michael & Galil, Bella S.', 2],
    ['Promdam, Rueangrit & Nabhitabhata, Jaruwat & Galil, Bella S.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);