function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brewer, Michael S. & Sierwald, Petra & Bond, Jason E.', 2],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 16],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 6],
    ['Magalhães, Wagner F. & Rizzo, Alexandra E.', 12],
    ['Mikac, Barbara', 5],
    ['Moreira, Juan & Parapar, Julio', 7],
    ['Muir, Alexander I. & Bamber, Roger N.', 2],
    ['Parapar, Julio & Al-Kandari, Manal & Barroso, María', 4],
    ['Parapar, Julio & Al-Kandari, Manal & Candás, María', 3],
    ['Parapar, Julio & Moreira, Juan', 8],
    ['Ribas, Julia & Hutchings, Pat', 2],
    ['Salazar-Vallejo, Sergio I. & Carrera-Parra, Luis F.', 3],
    ['Santos, Cinthya S. G. & Nonato, Edmundo F. & Petersen, Mary E.', 3],
    ['Schüller, Myriam', 7],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=87)',
    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);