function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beier, Max', 74],
    ['Chamberlin, Joseph Conrad', 23],
    ['Gardini, Giulio', 115],
    ['Hadži, Jovan', 15],
    ['Harvey, Mark S.', 12],
    ['Hoff, C. Clayton', 20],
    ['Hou, Yanmeng & Feng, Zegang & Zhang, Feng', 43],
    ['Hou, Yanmeng & Gao, Zhizhong & Zhang, Feng', 17],
    ['Mahnert, Volker', 9],
    ['Muchmore, William B.', 23],
    ['Novák, János', 19],
    ['Novák, János & Dányi, László', 10],
    ['Reboleira, Ana Sofia P. S. & Pérez, Antonio José', 16],
    ['Sun, Jianzhou & Guo, Xiangbo & Zhang, Feng', 9],
    ['Zaragoza, Juan A.', 90],
    ['Other (56)', 160]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=655)',
    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);