function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 21],
    ['Chernyshev, Alexei V. & Goedert, James L.', 7],
    ['Cunha, Carlo M. & Salvador, Rodrigo B.', 46],
    ['Frank, Christa', 3],
    ['Gründel, Joachim', 4],
    ['Hansen, Thomas', 4],
    ['Harzhauser, Mathias & Landau, Bernard', 35],
    ['Ketwetsuriya, Chatchalerm & Karapunar, Baran', 4],
    ['Kollmann, Heinz A.', 3],
    ['Luca, Javier Di & Zelaya, Diego G.', 8],
    ['Moore, Charles', 9],
    ['Odabaşi, Deniz Anil & Glöer, Peter & Yildirim, M. Zeki', 3],
    ['Pimenta, Alexandre D. & Santos, Franklin N. & Cunha, Carlo M.', 6],
    ['Sowerby, James DeCarle', 6],
    ['Yoo, E. K.', 9],
    ['Other (15)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=187)',
    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);