function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araújo, Diogo & Alves, Marccus', 1],
    ['Baas, Pieter & Manchester, Steven & Wheeler, Elisabeth A.', 1],
    ['Clarke, Robin & Zamalloa, Sonia', 1],
    ['Jarvis, Charlie', 1],
    ['Merrill, Elmer Drew & Perry, Lily May', 1],
    ['Monteiro, Francisca & Costa, Esperança Da & Kissanga, Raquel', 1],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 1],
    ['Schellenberg, Gustav August', 1],
    ['Toledo, Cassio A. P. & Souza, Vinicius Castro & Lucas, Eve J.', 13],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 2],
    ['van Balgooy, M. M. J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);