function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bankov, Nikola & Todorov, Milcho & Ganeva, Anna', 4],
    ['Batomalaque, Gizelle A. & Rosenberg, Gary Dr.', 3],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 9],
    ['De Mattia, Willy & Reier, Susanne & Haring, Elisabeth', 67],
    ['Feher, Zoltan & Szekeres, Miklos', 124],
    ['Fehér, Zoltán & Szekeres, Miklós & Páll-Gergely, Barna', 12],
    ['Frank, Christa', 8],
    ['Grego, Jozef & Szekeres, Miklos', 16],
    ['Hwang, Chung-Chi', 5],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 18],
    ['Irikov, Atanas', 5],
    ['Man, Nem Sian & Lwin, Ngwe & Sutcharit, Chirasak & Panha, Somsak', 15],
    ['Mumladze, Levan & Grego, Jozef & Szekeres, Miklos', 34],
    ['Nordsieck, Hartmut', 169],
    ['Spratt, David M.', 4],
    ['Other (30)', 43]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=536)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);