function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castro, Peter', 3],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Devi, S. Suvarna & Mendoza, Jose C. E. & Ravinesh, R.', 1],
    ['Flores, Augusto A. V. & Paula, José & Dray, Tiago', 2],
    ['In, First Published', 2],
    ['Lamarck, J. B. P. A. de M. de', 1],
    ['Naderloo, Reza', 2],
    ['Naderloo, Reza & Türkay, Michael', 2],
    ['Ng, Ngan Kee & Rodríguez Moreno, Paula A. & Naruse, Tohru', 20],
    ['Parasram, Nadeshinie & Santana, William & Vallès, Henri', 1],
    ['de Man, Johannes Govertus', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    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);