function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 4],
    ['Baquero, Enrique & Jordana, Rafael & Ortuño, Vicente M.', 2],
    ['Bendjaballah, Mohamed & Zoughailech, Abdelmalek', 1],
    ['Brahim-Bounab, Hayette & Bendjaballah, Mohamed', 2],
    ['Dányi, László & Traser, György & Kaprus’, Ighor J.', 1],
    ['Fiera, Cristina & Konikiewicz, Marta & Skarżyński, Dariusz', 2],
    ['Potapov, Mikhail & Brinev, Alexey & Sun, Xin', 8],
    ['Potapov, Mikhail & Deharveng, Louis', 4],
    ['Stebaeva, Sophya & Lonsdale, Owen & Babenko, Anatoly', 1],
    ['Thibaud, Jean-Marc', 31],
    ['Xie, Zhijing & Potapov, Mikhail & Sun, Xin', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);