function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Crous, P. W. & Osieck, E. R. & Jurjevi, Ž & Boers, J.', 1],
    ['Ezekiel, Chibundu N. & Kraak, Bart & Sandoval-Denis, Marcelo', 1],
    ['He, Jiao & Li, De-Wei & Cui, Wen-Li & Zhu, Li-Hua & Huang, Lin', 5],
    ['He, Yu-Ke & Jayawardena, Ruvishika S. & Kakumyan, Pattana', 2],
    ['Maryani, N. & Sandoval-Denis, M. & Lombard, L. & Crous, P. W.', 10],
    ['Sandoval-Denis, Marcelo & Swart, Wijnand J. & Crous, Pedro W.', 3],
    ['Suwannarach, Nakarin & Khuna, Surapong & Kumla, Jaturong', 1],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 9],
    ['Zhang, Zhi-Yuan & Li, Xin & Chen, Wan-Hao & Liang, Jian-Dong', 1],
    ['Zhao, Lin & Wei, Xin & Huang, Cheng-Xin & Yi, Ji-Ping', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);