function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beyarslan, A. & Yurtcan, M. & Çetin, Ö. & Aydogdu, M.', 3],
    ['Ghahari, H. & Fischer, M. & Cetin, O. & Beyarslan, A.', 4],
    ['Ghahari, H. & Fischer, M. & Sakenin, H. & Imani, S.', 7],
    ['Iamandei, Stanila & Iamandei, Eugenia & Grădinaru, Eugen', 3],
    ['Kvaček, Jiří', 2],
    ['Mendes, Mário Miguel & Dinis, Pedro & Kvaček, Jiří', 2],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 3],
    ['Moreau, Jean-David & Néraudeau, Didier & Philippe, Marc', 2],
    ['N. S & Ghahari, H. & F, Bassus & E, Camptothlipsis', 16],
    ['Philippe, Marc & Suteethorn, Varavudh & Buffetaut, Éric', 2],
    ['Poinar, George & Vega, Fernando E.', 2],
    ['Sakenin, H. & Naderian, H. & Samin, N. & Rastegar, J.', 3],
    ['Samin, N. & Ghahari, H. & N. S & Davidian, E.', 2],
    ['Samin, Najmeh & Ghahari, Hassan & I, Boyerahmad.', 2],
    ['Samin, Najmeh & Ghahari, Hassan & S, Neveen & Monaem, R.', 3],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=63)',
    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);