function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Angulo, Arturo', 3],
    ['Carvalho, Tiago Pinto & Bertaco, Vinicius Araújo', 2],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 3],
    ['Diniz, Paulo Baltazar & Siqueira, Hatus de Oliveira', 2],
    ['Fernando C. P. Dagost & anoela M. F. Mar & cila Cam', 13],
    ['Guimarães, Erick Cristofore & Brito, Pâmella Silva de', 2],
    ['Koerber, Stefan & Litz, Thomas O.', 2],
    ['Koerber, Stefan & Litz, Thomas O. & Serra, Wilson S.', 2],
    ['Langeani, Francisco', 3],
    ['Lima, Flávio C. T.', 2],
    ['Lima, Flávio C. T. & Moreira, Cristiano R.', 3],
    ['Litz, Thomas O. & The, Stefan Koerber Introduction', 6],
    ['Ota, Renata R. & Carvalho, Fernando R. & Pavanelli, Carla S.', 6],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 3],
    ['The, Stefan Koerber', 2],
    ['Other (29)', 29]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=83)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);