function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barrio-Amorós, César L.', 2],
    ['Baêta, Délio & Caramaschi, Ulisses & Cruz, Carlos Alberto G.', 2],
    ['Brito M., Jorge & Almendáriz, Ana & Batallas R., Diego', 1],
    ['Caramaschi, Ulisses', 12],
    ['Castroviejo-Fisher, Santiago & Köhler, Jörn', 1],
    ['Duellman, William E. & Marion, Angela B. & Hedges, Blair', 1],
    ['FAIVOVICH, JULIÁN & HADDAD, CÉLIO F. B. & GARCIA, PAULO C. A.', 4],
    ['Fouquet, Antoine & Vidal, Nicolas & Dewynter, Maël', 2],
    ['Giaretta, Ariovaldo A. & De, Júlio C. & Filho, Oliveira', 1],
    ['Manzano, Maria Carolina Rodella & Takeno, Michele Fernandes', 1],
    ['Ovalle-Pacheco, Andrés & Camacho-Rozo, Claudia & Arroyo, Sandy', 1],
    ['Santos, Danusy Lopes & de Morais, Alessandro Ribeiro', 2],
    ['Schiesari, Luis & Rossa-Feres, Denise De Cerqueira', 3],
    ['Silva-Filho, Ivan Sergio N. & Juncá, Flora A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);