function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bleeker, Pieter', 17],
    ['Bonaparte, Charles Lucien', 1],
    ['Cantor, T. E.', 2],
    ['Castro, Peter', 2],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Costa, Achille', 1],
    ['De Vis, Charles Walter', 1],
    ['Devi, S. Suvarna & Mendoza, Jose C. E. & Ravinesh, R.', 1],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 1],
    ['In, First Published', 2],
    ['Macleay, William John', 1],
    ['Naderloo, Reza', 1],
    ['Parasram, Nadeshinie & Santana, William & Vallès, Henri', 1],
    ['Rüppell, Wilhem Peter Eduard Simon', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);