function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borth, Robert J. & Kons, Hugo L.', 50],
    ['Brou Jr, V. A. & Zilli, A.', 1],
    ['Komal, J. & Shashank, P. R. & Sondhi, Sanjay & Madan, Sohail', 2],
    ['Mbata, Keith J. & Prins, Jurate De', 4],
    ['Sivasankaran, Kuppusamy & Anand, Sekar & Mathew, Pratheesh', 9],
    ['Vargas-Fonseca, Sergio & Correa-Carmona, Yenny', 7],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 4],
    ['Zaspel, J. M. & Branham, M. A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=78)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);