function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andrade, Felipe Silva De & Carvalho, Thiago Ribeiro De', 1],
    ['Andrade, Felipe Silva De & Haga, Isabelle Aquemi', 1],
    ['Andrade, Felipe Silva de & Haga, Isabelle Aquemi', 2],
    ['Cardozo, Darío & Suárez, Pablo', 1],
    ['Carvalho, Thiago Ribeiro De', 1],
    ['Giaretta, Ariovaldo A. & De, Marcelo N. & Kokubum, C.', 1],
    ['Pansonato, André & Morais, Dráusio H. & Ávila, Robson W.', 1],
    ['Pansonato, André & Mudrek, Jessica Rhaiza', 1],
    ['Pansonato, André & Veiga-Menoncello, Ana Cristina P.', 1],
    ['Roberto, Igor Joventino & Cardozo, Dario & Ávila, Robson W.', 1],
    ['Toledo, Luís Felipe', 1],
    ['Toledo, Luís Felipe & Siqueira, Sérgio & Duarte, Thiago C.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);