function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barilo, A. B.', 1],
    ['Corpuz-Raros, Leonila Alzate', 7],
    ['Corpuz-Raros, Leonila Alzate & Naredo, Jeremy C. B.', 3],
    ['Den Heyer, Jacob', 4],
    ['Den Heyer, Jacob & de Castro, Tatiane Marie Martins Gomes', 1],
    ['Heyer, Jacob Den & Castro, Tatiane Marie Martins Gomes De', 4],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 6],
    ['Lin, Jianzhen & Zhang, Yanxuan', 3],
    ['Mejía-Recamier, Blanca E. & Palacios-Vargas, José G.', 6],
    ['Shiba, Minoru', 1],
    ['Skvarla, M. J. & Fisher, J. R. & Dowling, A. P. G.', 3],
    ['Skvarla, Michael J. & Fisher, J. Ray & Dowling, Ashley P. G.', 1],
    ['Smiley, Robert L.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);