function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Huo, Qing-Bo & Xiang, Ya-Nan & Rehman, Abdur & Du, Yu-Zhou', 7],
    ['Judson, Sarah W. & Nelson, C. Riley', 2],
    ['Klapálek, F.', 1],
    ['Li, Kefan & Li, Weihai', 2],
    ['Li, Kefan & Wang, Bingli & Bozdoğan, Hakan & Li, Weihai', 4],
    ['Li, Weihai & Kong, Fanbin & Liu, Siqi', 3],
    ['Li, Weihai & Mo, Raorao', 2],
    ['Li, Weihai & Mo, Raorao & Yang, Juan', 2],
    ['Li, Weihai & Wang, Liuhao & Yu, Hao', 1],
    ['Mo, Raorao & Yan, Yanhua & Wang, Guoquan & Li, Weihai', 1],
    ['Sivec, Ignac & Stark, Bill P.', 17],
    ['Stark, Bill P.', 1],
    ['Stark, Bill P. & Sivec, Ignac', 4],
    ['Sun, Hai-Tao & Du, Yu-Zhou', 4],
    ['Yan, Yanhua & Kong, Fanbin & Li, Weihai', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    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);