function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Flechtmann, Carlos H. W. & De, Gilberto J. & Moraes', 1],
    ['Flechtmann, Carlos Holger Wenzel & Tassi, Aline Daniele', 1],
    ['Huang, Kun-Wei', 1],
    ['Huang, Kun-Wei & Wang, Chin-Fah', 5],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 4],
    ['Li, De-Wei & Wei, Sui-Gai & Wang, Guo-Quan', 1],
    ['Navia, Denise & Flechtmann, Carlos H. W. & Lindquist, Evert E.', 2],
    ['Ou, Shan-Sheng & Wang, Guo-Quan & Wei, Sui-Gai', 1],
    ['Pye, Daniel R. L.', 1],
    ['Skoracka, Anna', 1],
    ['Skoracka, Anna & Shi, Aoxiang & Pacyna, Anna', 1],
    ['Sur, Surajit & Roy, Sourav & Chakrabarti, Samiran', 1],
    ['Wang, Zhen & Hong, Xiao-Yue', 3],
    ['Xue, Xiao-Feng & Han, Xiao & Song, Zi-Wei & Hong, Xiao-Yue', 2],
    ['Xue, Xiao-Feng & Zhang, Zhi-Qiang', 7],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    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);