function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguilar, Jean-Pierre & Michaux, Jacques & Lazzari, Vincent', 4],
    ['Colombero, Simone & Pavia, Giulio & Carnevale, Giorgio', 8],
    ['Crespo, Vicente Daniel & Ríos, María & Marquina-Blasco, Rafael', 16],
    ['Denys, Christiane & Missoup, Alain Didier & Nicolas, Violaine', 2],
    ['Don E. Wilson & Thomas E. Lacher, Jr & Russell A. Mittermeier', 30],
    ['Freudenthal, Matthijs & Martín-Suárez, Elvira', 2],
    ['García-Paredes, Israel & Peláez-Campomanes, Pablo', 12],
    ['Gbif. Org, Occdownload', 5],
    ['Hír, János & Kókay, József', 4],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 23],
    ['Lu, Xiaoyu & Costeur, Loïc & Hugueney, Marguerite', 9],
    ['Popov, Vasil V.', 3],
    ['Ruiz-Sánchez, Francisco J. & Murelaga, Xabier', 6],
    ['Vianey-Liaud, Monique & Vidalenc, Dominique & Orliac, Maëva J.', 4],
    ['Wilson, Don E. & Reeder, DeeAnn', 43],
    ['Other (13)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=187)',
    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);