function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bota, Cornelio Andrés', 1],
    ['DeMarmels, Jurg', 5],
    ['Garré, Analía & Muzón, Javier & Ardohain, Diego M.', 3],
    ['Gonzalez Soriano, Enrique & Noguera, Felipe', 2],
    ['Guillermo-Ferreira, Rhainer & Vilela, Diogo S.', 1],
    ['Haber, William A. & Wagner, David L. & Rosa, Carlos De La', 3],
    ['Kormondy, E. J.', 2],
    ['Mauffray, William F. & Tennessen, Kenneth J.', 1],
    ['Márquez, Javier A. & Principe, Romina E. & Berejnoi, Diego E.', 2],
    ['Palacino-Rodríguez, Fredy & Rache-Rodríguez, Leonardo', 1],
    ['Rogers, D. Christopher & Cruz-Rivera, Edwin', 2],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 18],
    ['Trapero-Quintana, Adrian & Novelo-Gutiérrez, Rodolfo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);