function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Azari-Hamidian, Shahyad & Abai, Mohammad-Reza & Norouzi, Behzad', 1],
    ['Barbosa, Andreia Aparecida & Silva, Mário Antônio Navarro Da', 2],
    ['Blanchard, Raphaël', 1],
    ['Dawah, Hassan A. & Abdullah, Mohammed A. & Ahmad, Syed Kamran', 1],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Harbach, Ralph E. & Wilkerson, Richard C.', 1],
    ['NATARAJAN, R. & GOPALAKRISHNAN, S. & SHRIRAM, A. N.', 1],
    ['Rozo-Lopez, Paula & Mengual, Ximo', 10],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);