function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cianferoni, Fabio & Mazza, Giuseppe', 4],
    ['Cianferoni, Fabio & Rocchi, Saverio & Terzani, Fabio', 3],
    ['Cobben, R. H.', 8],
    ['Drake, Carl J. & Hoberlandt, Ludvík', 3],
    ['Fent, Meral & Kment, Petr & Çamur-Elipek, Belgin & Kirgiz, Timur', 14],
    ['Kment, Petr & Kolínová, Zdislava', 13],
    ['Linnavuori, Rauno E.', 3],
    ['Norbiato, Margherita & Dioli, Paride & Cianferoni, Fabio', 5],
    ['Polhemus, John T. & Polhemus, Dan A.', 3],
    ['Sakenin, H. & Samin, N. & Rastegari, J. & Havaskary, M.', 3],
    ['Usinger, Robert L.', 3],
    ['Vinokurov, Nikolay N.', 6],
    ['Vinokurov, Nikolay N. & Kment, Petr', 18],
    ['White, Francis Buchanan', 4],
    ['Yildirim, E. & Yazici, G. & Moulet, P.', 3],
    ['Other (11)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=110)',
    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);