function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Campos, Martha R.', 3],
    ['Campos, Martha R. & Alexander, Moises', 2],
    ['Campos, Martha R. & Magalhães, Célio', 3],
    ['Magalhães, Célio & Wehrtmann, Ingo S. & Lara, Luis Rólier', 25],
    ['Moreno-Juárez, Eric G. & Villalobos, José Luis', 4],
    ['Ojeda-Escoto, Juan Carlos & Villalobos, José Luis', 3],
    ['Pedraza, Manuel & Tavares, Marcos', 4],
    ['Pedraza, Manuel & Tavares, Marcos & Magalhães, Célio', 3],
    ['Pinheiro, Allysson P. & Santana, William', 3],
    ['Pérez-Reyes, Omar & Crowl, Todd A. & Hernández-García, Pablo J.', 3],
    ['Suárez, Héctor', 6],
    ['Villalobos, José Luis & Alvarez, Fernando', 8],
    ['Villalobos, José Luis & Álvarez, Fernando', 5],
    ['Villalobos-Hiriart, José Luis & Kamanli, Seyit A.', 3],
    ['Álvarez, Fernando & Ojeda, Juan Carlos & Souza-Carvalho, Edvanda', 3],
    ['Other (13)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=100)',
    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);