function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alexander, Charles Paul', 3],
    ['Hancock, E. Geoffrey', 1],
    ['Kolcsar, Levente-Peter & d\'Oliveira, Micha Camiel', 5],
    ['Meigen, Johann Wilhelm', 1],
    ['Men, Qiu-Lei & Xue, Guo-Xi & Yang, Hai', 2],
    ['Men, Qiulei & Lu, Zhiyong & Sheng, Pingping & Gui, Xiang', 1],
    ['Men, Qiulei & Xue, Guoxi & Wang, Fang', 1],
    ['Men, Qiulei & Yu, Dong & Sun, Mengwei', 7],
    ['Pilipenko, V. E. & Sidorenko, V. S.', 1],
    ['Podeniene, Virginija & Naseviciene, Nijole & Podenas, Sigitas', 6],
    ['Ren, Jinlong & Yang, Ding', 7],
    ['Ribeiro, Guilherme C. & Santos, Daubian', 4],
    ['Yang, Qi-Cheng & Liu, Qi-Fei & Pan, Zhao-Hui & Liu, Xiao-Yan', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);