function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bütschli, Otto', 4],
    ['Chandra, Kailash & Mazumder, Arna & Sanyal, Abesh Kumar', 2],
    ['Dumitrica, Paulian', 9],
    ['Dumitrica, Paulian & Zügel, Peter', 91],
    ['Ehrenberg, Christian Gottfried', 49],
    ['Haeckel, E. H. P. A.', 289],
    ['Jangoux, Michel', 2],
    ['Kochhann, Karlos G. D. & Baecker-Fauth, Simone & Fauth, Gerson', 21],
    ['Müller, J.', 6],
    ['Noble, Paula & Aitchison, Jonathan C. & Danelian, Taniel', 234],
    ['Popova, Irina M. & Baumgartner, Peter O. & Guex, Jean', 92],
    ['Suzuki, Noritoshi & Caulet, Jean-Pierre & Dumitrica, Paulian', 28],
    ['Tekin, Kagan & Krystyn, Leopold & Okuyucu, Cengiz & Bedi, Yavuz', 119],
    ['Trubovitz, Sarah & Renaudie, Johan & Lazarus, David', 143],
    ['Zhang, Lanlan & Suzuki, Noritoshi', 12],
    ['Other (5)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1107)',
    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);