function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bouchard, Patrice & Bousquet, Yves & Davies, Anthony E.', 1],
    ['Frölich, Josef Aloys', 1],
    ['Ghahari, Hassan', 1],
    ['Jiang, Ri-Xin & Zhang, Hong-Rui & Wang, Shuo', 1],
    ['Newton, Alfred Francis', 1],
    ['Pubu, Zhuoma & Yin, Zi-Wei', 1],
    ['Pérez-Hernández, Cisteil Xinum', 4],
    ['Růžička, Jan & Latella, Leonardo & Schawaller, Wolfgang', 3],
    ['Růžička, Jan & Pütz, Andreas', 11],
    ['Sharp, David', 1],
    ['Stephens, James Francis', 1],
    ['Sundukov, Yu. N.', 1],
    ['Tang, Liang & Li, Li-Zhen & Ruzicka, Jan', 4],
    ['Yoo, In-Seong & Sikes, Derek & Ahn, Kee-Jeong', 2],
    ['Zhou, Hong-Zhang & Yu, Xiao-Dong & Luo, Tian-Hong', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);