function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Berlese, Antonio', 1],
    ['Corpuz-Raros, Leonila A. & Naredo, Jeremy C. B.', 3],
    ['Corpuz-Raros, Leonila A. & Naredo, Jeremy C. B. & Lit, Ireneo L.', 4],
    ['Corpuz-Raros, Leonila Alzate', 6],
    ['Den Heyer, Jacob', 2],
    ['Gupta, S. K. & Ghosh, S. K.', 1],
    ['Heyer, Jacob Den & Castro, Tatiane Marie Martins Gomes De', 2],
    ['Inayatullah, Mian & Shahid, Mohammad', 3],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 1],
    ['Liang, Guowei', 1],
    ['Rocha, Matheus Dos Santos & Rodrigues, Everton Nei Lopes', 1],
    ['Skvarla, Michael J. & Dowling, Ashley P. G.', 4],
    ['Skvarla, Michael J. & Fisher, J. Ray & Dowling, Ashley P. G.', 2],
    ['Smiley, Robert L.', 3],
    ['Swift, Sabina Fajardo', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);