function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Armstrong, J. W. T.', 15],
    ['Kiałka, Agata & Ruta, Rafał', 160],
    ['Klausnitzer, B.', 22],
    ['Klausnitzer, Bernhard', 23],
    ['Klausnitzer, Bernhard Dr.', 96],
    ['Libonatti, María Laura', 18],
    ['Nyholm, Tord', 18],
    ['Pic, Maurice', 78],
    ['Ruta, Rafał', 104],
    ['Ruta, Rafał & Yoshitomi, Hiroyuki', 48],
    ['Yoshitomi, Hiroyuki', 46],
    ['Yoshitomi, Hiroyuki & Ruta, Rafał', 38],
    ['Yoshitomi, Hiroyuki Dr.', 56],
    ['Yoshitomi, Hiroyuki Dr. & Satô, Masataka Dr.', 51],
    ['Zwick, Peter', 203],
    ['Other (58)', 226]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1202)',
    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);